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HD6433802H Datasheet, PDF (175/435 Pages) Hitachi Semiconductor – Single-Chip Microcomputer
8.7.3 Pin Functions
Table 8.18 shows the port 8 pin functions.
Table 8.18 Port 8 Pin Functions
Pin
P80/SEG25
Pin Functions and Selection Method
The pin function depends on bit PCR8n in PCR8 and bits SGS3 to SGS0 in LPCR.
SEGS3 to SEGS0 Other than 0111, 1000, 1001, 1010, 1011, 0111, 1000, 1001,
1100, 1101, 1110
1010, 1011, 1100,
1101, 1110
PCR80
Pin function
0
P80 input pin
1
P80 output pin
*
SEG25 output pin
*: Don’t care
8.7.4 Pin States
Table 8.19 shows the port 8 pin states in each operating mode.
Table 8.19 Port 8 Pin States
Pins
P80/SEG25
Reset
Sleep Subsleep Standby Watch Subactive Active
High-
Retains Retains High-
Retains Functional Functional
impedance previous previous impedance previous
state state
state
157