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H838024 Datasheet(PDF) 269 Page - Renesas Technology Corp

Part # H838024
Description  Renesas 8-Bit Single-Chip Microcomputer Super Low Power Series
PDF  697 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H838024 Datasheet(HTML) 269 Page - Renesas Technology Corp

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Section 8 I/O Ports
Rev. 7.00 Mar 10, 2005 page 227 of 652
REJ09B0042-0700
8.8.3
Pin Functions
Table 8.21 shows the port 8 pin functions.
Table 8.21
Port 8 Pin Functions
Pin
Pin Functions and Selection Method
The pin function depends on bits PCR87 to PCR80 in PCR8 and bits SGS3 to SGS0
in LPCR.
P87 to P84
(n = 7 to 4)
P87/SEG32
to
P80/SEG25
SGS3 to SGS0
Other than 1000, 1001, 1010, 1011, 1100,
1101, 1110, 1111
1000, 1001, 1010,
1011, 1100, 1101,
1110, 1111
PCR8n
01
*
Pin function
P8n input pin
P8n output pin
SEGn+25 output pin
P83 to P80
(m = 3 to 0)
SGS3 to SGS0
Other than 0111, 1000, 1001, 1010, 1011,
1100, 1101, 1110
0111, 1000, 1001,
1010, 1011, 1100,
1101, 1110
PCR8m
01
*
Pin function
P8m input pin
P8m output pin
SEGm+25 output pin
*: Don’t care
8.8.4
Pin States
Table 8.22 shows the port 8 pin states in each operating mode.
Table 8.22
Port 8 Pin States
Pins
Reset
Sleep
Subsleep Standby
Watch
Subactive Active
P87/SEG32 to
P80/SEG25
High-
impedance
Retains
previous
state
Retains
previous
state
High-
impedance
Retains
previous
state
Functional Functional



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