6Am186
TM
er 和 am188
TM
er 微控制器 数据 薄板
DRAFTDRAFT
LCS/once0 ................................................................................................................... 33
MCS
3/rfsh/pio25 ....................................................................................................... 33
MCS
2–MCS0 (mcs2/pio24, mcs1/pio15, mcs0/pio14) .......................................... 34
nmi ................................................................................................................................ 34
PCS
3–PCS0 (pcs3/pio19, pcs2/pio18, pcs1/pio17, pcs0/pio16) ...................... 34
PCS
5/a1/pio3 ............................................................................................................... 34
PCS
6/a2/pio2 ............................................................................................................... 34
pio31–pio0 (shared).................................................................................................... 35
RD
.................................................................................................................................. 35
RES
................................................................................................................................ 35
RFSH
2/aden(am188™er 微控制器 仅有的)........................................................ 35
rxd/pio28 .................................................................................................................... 35
S
2 ................................................................................................................................... 35
S
1/imdis........................................................................................................................ 37
S
0/sren........................................................................................................................ 37
s6/clksel
1/pio29 ....................................................................................................... 37
sclk/pio20 .................................................................................................................. 37
sdata/pio21 ................................................................................................................ 37
sden1/pio23, sden0/pio22 ....................................................................................... 37
srdy/pio6 .................................................................................................................... 38
tmrin0/pio11 .............................................................................................................. 38
tmrin1/pio0 ................................................................................................................ 38
tmrout0/pio10 .......................................................................................................... 38
tmrout1/pio1 ............................................................................................................ 38
txd/pio27 ..................................................................................................................... 38
UCS
/once1 .................................................................................................................. 38
UZI
/clksel2/pio26 ..................................................................................................... 38
V
CC
................................................................................................................................ 39
WHB
(am186™er 微控制器 仅有的) ...................................................................... 39
WLB
(am186™er 微控制器 仅有的)........................................................................ 39
WB
(am188™er 微控制器 仅有的) ......................................................................... 39
WR
................................................................................................................................. 39
x1 ................................................................................................................................... 39
x2 ................................................................................................................................... 39
函数的 描述 ............................................................................................................... 40
记忆 organization ..................................................................................................... 40
i/o 空间 ....................................................................................................................... 40
总线 运作............................................................................................................................ 41
总线 接口 单位 ...................................................................................................................... 41
nonmultiplexed 地址 总线......................................................................................... 41
字节 写 使能 ........................................................................................................ 41
输出 使能 ................................................................................................................ 41
pseudo 静态的 内存 (psram) 支持 .......................................................................... 44
附带的 控制 块 (pcb) .................................................................................................44
读 和 writing 这 pcb ........................................................................................ 44
时钟 和 电源 管理 .................................................................................................. 44
阶段-锁 循环 (pll) ............................................................................................. 44
结晶-驱动 时钟 源.......................................................................................... 45
外部 源 时钟 ................................................................................................... 45
系统 clocks ............................................................................................................... 48
电源-保存 运作 ................................................................................................... 48
initialization 和 处理器 重置.................................................................................. 48
重置 配置 寄存器......................................................................................... 48