參數(shù)資料
型號: ELANSC300
廠商: Advanced Micro Devices, Inc.
元件分類: 32位微控制器
英文描述: Highly Integrated, Low-Power, 32-Bit Microcontroller
中文描述: 高度集成,低功耗,32位微控制器
文件頁數(shù): 69/139頁
文件大?。?/td> 1388K
代理商: ELANSC300
élanSC300 Microcontroller Data Sheet
69
P R E L I M I N A R Y
CPU Local Bus Interface versus Internal LCD Interface
The tables of this section are brief descriptions of the alternate pin functions/names and the pin name of the Internal
LCD mode function that the alternate function replaces. The CPU Local Bus Interface alternate functions are con-
figured via the DTR and RTS
pin states when the élanSC300 microcontroller is reset.
Notes:
1.
The SA11–SA0 pins are the lower order address lines for local bus cycles in the Local Bus Interface mode.
2. See the Table 26 on page 65 for information on required termination for Local Bus and Internal LCD Controller modes.
3. Other Internal LCD Controller mode pin functions, which are not listed in this table, change when the Local Bus mode is en-
tered. These pins change to an ISA bus function when Local Bus mode is entered.
Table 28.
Pins Shared Between CPU Local Bus and Internal LCD Interface Functions
CPU Local Bus
Interface Pin Name
Pin Type
CPU Local Bus Interface
Pin Description/Notes
Internal LCD
Controller Mode
Function Pin Name
DSMA14–DSMA4
LVDD
Pin No.
A23–A12
O
Local Bus Address Bus
145
149–155
158–161
ADS
D/C
M/IO
W/R
BHE
BLE
LRDY
LDEV
CPURDY
CPUCLK
CPURST
O
Address Strobe
Data/Code Cycle Status signal
Memory/I/O Cycle Status signal
Write/Read Cycle Status signal
Byte High Enable
Byte Low Enable
Local Device Ready
Local Bus Device Acknowledge
CPU Ready
CPU Clock
CPU Reset
DSMD7
DSMD6
DSMD5
DSMD4
DSMD3
DSMD2
DSMD1
DSMD0
DSOE
DSMA3
DSMA2
172
O
171
O
170
O
169
O
168
O
167
I
166
I
148
O
147
O
162
O
163
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