HD6475328-CP10 HITACHI [Hitachi Semiconductor], HD6475328-CP10 Datasheet - Page 163

• Manufacturer Part Number: HD6475328-CP10
• Description: original Hitachi CMOS microcomputer unit (MCU)
• Manufacturer: HITACHI [Hitachi Semiconductor]

Table 9-3 Port 1 Pin Functions in Expanded Modes (cont)
Pin
P1
P1
P1
P1
P1
4
3
2
1
0
/ WAIT
/ BREQ
/ BACK
/ E
/ ø
Functions and How they are Selected
The function depends on the wait mode select 1 bit (WMS1) of the wait-state control
register (WCR) and the P1
WMS1
P1
Pin function
The function depends on the BRLE bit and the P1
BRLE
P1
Pin function
The function depends on the BRLE bit and the P1
BRLE
P1
Pin function
P1
Pin function
P1
Pin function
4
3
2
1
0
DDR
DDR
DDR
DDR
DDR
P1
P1
P1
Input
Input
4
3
2
0
0
0
0
0
input
input
input
0
0
0
4
DDR bit as follows:
P1
P1
P1
E clock output
ø clock output
4
3
2
output
output
output
146
1
1
1
1
1
0
0
0
BREQ input
BACK input
WAIT input
3
2
DDR bit as follows:
DDR bit as follows:
1
1
1
1
1
1