參數(shù)資料
型號(hào): MB90P641A
廠商: Fujitsu Limited
英文描述: 16-bit Proprietary Microcontroller
中文描述: 16位微控制器專(zhuān)有
文件頁(yè)數(shù): 50/96頁(yè)
文件大?。?/td> 1569K
代理商: MB90P641A
50
MB90640A Series
12. External Bus Terminal Control Circuit
This circuit controls the external bus terminals intended to extend outwardly the CPU’s address/data bus.
(1)
Register Configuration
(2)
Block Diagram
: 0000A5
H
Address :
IOR1
IOR0
HMR1 HMR0
LMR1
LMR0
bit 15
bit 14
bit 13
bit 12
bit 11
bit 10
bit 9
bit 8
W
W
W
W
W
W
Initial value
0011--00
B
: 0000A6
H
Address :
E23
E22
E21
E20
E19
E18
E17
E16
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
W
W
W
W
W
W
W
W
Initial value
00000000
B
: 0000A7
H
Address :
LMBS
WRE
HMBS
IOBS
HDE
RYE
CKE
bit 15
bit 14
bit 13
bit 12
bit 11
bit 10
bit 9
bit 8
W
W
W
W
W
W
W
Initial value
-00*0000
B
W
X
*
: Write only
: Unused
: Indeterminate
: “1” or “0” (determined owing to the MD0 to MD2 pin level)
ECSR
HACR
ARSR
Register for selection of AUTO ready function
Register for control of external address output
Register for selection of bus control signal
Access control
Data control
Port 0 data register
Port 0 direction register
Access control
Access control
RB
Port 0 pin
Port 1 pin
Port 2 pin
Port 3 pin
PorPort 5 pin
Port 0
Port 1
Port 2
Port 3
Port 4
Port 5
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