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SH7052 Datasheet(PDF) 708 Page - Renesas Technology Corp

Part # SH7052
Description  SuperHTM RISC engine
PDF  919 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7052 Datasheet(HTML) 708 Page - Renesas Technology Corp

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19.10.2
Port J Data Register (PJDR)
Bit:
15
14
13
12
11
10
9
8
PJ15
DR
PJ14
DR
PJ13
DR
PJ12
DR
PJ11
DR
PJ10
DR
PJ9
DR
PJ8
DR
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
7
6
5
4
3
2
1
0
PJ7
DR
PJ6
DR
PJ5
DR
PJ4
DR
PJ3
DR
PJ2
DR
PJ1
DR
PJ0
DR
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
The port J data register (PJDR) is a 16-bit readable/writable register that stores port J data. Bits
PJ15DR to PJ0DR correspond to pins PJ15/TI9F to PJ0/TIO2A.
When a pin functions as a general output, if a value is written to PJDR, that value is output
directly from the pin, and if PJDR is read, the register value is returned directly regardless of the
pin state.
When a pin functions as a general input, if PJDR is read the pin state, not the register value, is
returned directly. If a value is written to PJDR, although that value is written into PJDR it does not
affect the pin state. Table 19.18 summarizes port J data register read/write operations.
PJDR is initialized to H'0000 by a power-on reset (excluding a WDT power-on reset), and in
hardware standby mode. It is not initialized in software standby mode or sleep mode.
Table 19.18 Port J Data Register (PJDR) Read/Write Operations
Bits 15 to 0:
PJIOR
Pin Function
Read
Write
0
General input
Pin state
Value is written to PJDR, but does not affect pin
state
Other than
general input
Pin state
Value is written to PJDR, but does not affect pin
state
1
General output
PJDR value
Write value is output from pin
Other than
general output
PJDR value
Value is written to PJDR, but does not affect pin
state



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