HD6475328-CP10 HITACHI [Hitachi Semiconductor], HD6475328-CP10 Datasheet - Page 422

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

C.2 Schematic Diagram of Port 2
Figure C-2 gives a schematic view of the port 2 input/output circuits.
Table C-2 Port 2 Port Read
Mode
1,2,3,4
7
P2
n
DDR = 0
DDR = 1
Mode 1, 2, 3, or 4
Port Read Data
DR value
Pin value
DR value
Figure C-2 Schematic Diagram of Port 2
Mode 7
Bus release
Software standby
413
RP2
Bus control signals
Mode 1, 2, 3, or 4
Q
Q
P2 DDR
WP2D
P2 DR
S
WP2
n
C
C
Reset
Reset
n
R
R
D
D
WP2D:
WP2:
RP2:
n:
Write to P2DDR
Write to Port 2
Read Port 2
0, 1, 2, 3, or 4