SH7108 Datasheet, PDF (452/560 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 14 Pin Function Controller (PFC)
(2) Port B Control Registers 1 and 2 (PBCR1 and PBCR2) in SH7109
Register Bit
Initial
Bit Name Value R/W
PBCR1
PBCR1
PBCR2
15 to 14 —
8 to 0 —
15 to 12 —
All 0 R
All 0 R
All 0 R
PBCR1 13
PBCR2 11
PBCR2 10
PB5MD2 0*¹
PB5MD1 0
PB5MD0 0*¹
R/W
R/W
R/W
PBCR1 12
PB4MD2 0
R/W
PBCR2 9
PB4MD1 0
R/W
PBCR2 8
PB4MD0 0
R/W
PBCR1 11
PB3MD2 0
R/W
PBCR2 7
PB3MD1 0
R/W
PBCR2 6
PB3MD0 0
R/W
PBCR1 10
PB2MD2 0
R/W
PBCR2 5
PB2MD1 0
R/W
PBCR2 4
PB2MD0 0
R/W
PBCR1 9
PBCR2 3
PBCR2 2
PB1MD2 0
R/W
PB1MD1 0
R/W
PB1MD0 0*²
R/W
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
PB5 Mode
Select the function of the PB5/IRQ3/POE3/CK pin.
000: PB5 I/O (port)
100: Setting prohibited
001: IRQ3 input (INTC) 101: CK output (CPG)
010: POE3 input (port) 110: Setting prohibited
011: Setting prohibited 111: Setting prohibited
PB4 Mode
Select the function of the PB4/IRQ2/POE2 pin.
000: PB4 I/O (port)
100: Setting prohibited
001: IRQ2 input (INTC) 101: Setting prohibited
010: POE2 input (port) 110: Setting prohibited
011: Setting prohibited 111: Setting prohibited
PB3 Mode
Select the function of the PB3/IRQ1/POE1 pin.
000: PB3 I/O (port)
100: Setting prohibited
001: IRQ1 input (INTC) 101: Setting prohibited
010: POE1 input (port) 110: Setting prohibited
011: Setting prohibited 111: Setting prohibited
PB2 Mode
Select the function of the PB2/IRQ0/POE0 pin.
000: PB2 I/O (port)
100: Setting prohibited
001: IRQ0 input (INTC) 101: Setting prohibited
010: POE0 input (port) 110: Setting prohibited
011: Setting prohibited 111: Setting prohibited
PB1 Mode
Select the function of the PB1/A17 pin.
000: PB1 I/O (port)
100: Setting prohibited
001: A17 output (BSC)
101: Setting prohibited
010: Setting prohibited
110: Setting prohibited
011: Setting prohibited
111: Setting prohibited
Rev.1.00 Sep. 18, 2008 Page 418 of 522
REJ09B0069-0100