SH7261 Datasheet, PDF (1115/1348 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 25 Pin Function Controller (PFC)
25.1.4 Port B Control Registers 1 to 8 (PBCR1 to PBCR8)
PBCR1 to PBCR8 are 16-bit readable/writable registers that select the functions of the
multiplexed port B pins. When IRQ7A to IRQ0A or PINT7A to PINT0A are selected, do not set B
input for the same interrupt.
PBCR1 and PBCR2 are initialized to H'1111 by a power-on reset or by switching to deep standby
mode. PBCR3 to PBCR8 are initialized to the values shown in table 25.8 by a power-on reset or
by switching to deep standby mode. These registers are not initialized either by a manual reset or
by switching to sleep mode or software standby mode.
Table 25.8 Port B Control Register Initial Values
Register
PBCR5 to PBCR8
PBCR3, PBCR4
Area 0: 32-Bit Mode
H'1111
H'1111
Initial Value
Area 0: 16-Bit Mode
H'0000
H'1111
Area 0: 8-Bit Mode
H'0000
H'0000
(1) Port B Control Register 8 (PBCR8)
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
— — PB31MD[1:0] —
PB30MD[2:0]
—
PB29MD[2:0]
—
PB28MD[2:0]
Initial value: 0
R/W: R
0
0 0/1* 0
0
0 0/1* 0
0
0 0/1* 0
0
0 0/1*
R R/W R/W R R/W R/W R/W R R/W R/W R/W R R/W R/W R/W
Note: * The initial value depends on the LSI’s operating mode.
Initial
Bit
Bit Name Value R/W
15, 14 —
All 0 R
13, 12 PB31MD
[1:0]
00/01* R/W
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
PB31 Mode
These bits control the function of the PB31/D31/
PINT7A pin.
00: PB31 I/O (port)
01: D31 I/O (BSC)
10: PINT7A input (INTC)
11: Setting prohibited
Rev. 2.00 Sep. 07, 2007 Page 1083 of 1312
REJ09B0320-0200