HD6417616 RENESAS [Renesas Technology Corp], HD6417616 Datasheet - Page 824

• Manufacturer Part Number: HD6417616
• Description: 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7600 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 20 I/O Ports
Table 20.3 Register Configuration
20.3.2
The port B data register (PBDR) is a 16-bit read/write register that stores port B data. Bits
PB15DR to PB0DR correspond to pins PB15 to PB0. When a pin functions as a general output, if
a value is written to PBDR, that value is output directly from the pin, and if PBDR is read, the
register value is returned directly regardless of the pin state. When a pin functions as a general
input, if PBDR is read the pin state, not the register value, is returned directly. If a value is written
to PBDR, although that value is written into PBDR it does not affect the pin state. Table 20.4
shows port B data register read/write operations.
PBDR is initialized to H'0000 by a power-on reset. It is not initialized by a manual reset or in
standby mode or sleep mode.
Table 20.4 Port B Data Register (PBDR) Read/Write Operations
Rev. 2.00 Mar 09, 2006 page 798 of 906
REJ09B0292-0200
Name
Port B data register
PBIOR
0
1
Initial value:
Initial value:
Port B Data Register (PBDR)
Pin Function
General input
Other than general input
General output
Other than general output
R/W:
R/W:
Bit:
Bit:
PB15DR PB14DR PB13DR PB12DR PB11DR PB10DR PB9DR
PB7DR
R/W
R/W
15
0
7
0
Abbreviation
PBDR
PB6DR
R/W
R/W
14
0
6
0
PBDR value
PBDR value
Read
Pin state
Pin state
PB5DR
R/W
R/W
R/W
R/W
13
0
5
0
PB4DR
R/W
R/W
Initial Value
H'0000
12
0
4
0
Write
Value is written to PBDR, but does not
affect pin state
Value is written to PBDR, but does not
affect pin state
Write value is output from pin
Value is written to PBDR, but does not
affect pin state
PB3DR
R/W
R/W
11
0
3
0
Address
H'FFFFFC8C
PB2DR
R/W
R/W
10
0
2
0
PB1DR
R/W
R/W
9
0
1
0
Access Size
8, 16
PB8DR
PB0DR
R/W
R/W
8
0
0
0