HD64F7144F50V Datasheet, PDF (652/932 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

17. Pin Function Controller (PFC)
• Port B Control Registers 1 and 2 (PBCR1 and PBCR2)
Register Bit
Initial
Bit Name Value R/W Description
PBCR1 15, 14 ⎯
All 0 R
Reserved
PBCR1 13, 12 ⎯
PBCR1 9 to 4 ⎯
All 0 R/W These bits are always read as 0. The write
All 0 R
value should always be 0.
PBCR2 3, 1
⎯
All 0 R
PBCR1 3
PB9MD1 0
R
PB9 Mode
PBCR1 2
PB9MD0 0
R
Select the function of the
PB9/IRQ7/A21/ADTRG pin.
00: PB9 I/O (port)
01: IRQ7 input (INTC)
10: A21 output (BSC)
11: ADTRG input (A/D)
PBCR1 1
PBCR1 0
PB8MD1 0
PB8MD0 0
R/W PB8 Mode
R/W Select the function of the PB8/IRQ6/A20/WAIT
pin.
00: PB8 I/O (port)
01: IRQ6 input (INTC)
10: A20 output (BSC)
11: WAIT input (BSC)
PBCR2 15
PBCR2 14
PB7MD1 0
PB7MD0 0
R/W PB7 Mode
R/W Select the function of the PB7/IRQ5/A19/BREQ
pin.
00: PB7 I/O (port)
01: IRQ5 input (INTC)
10: A19 output (BSC)
11: BREQ input (BSC)
Rev.4.00 Mar. 27, 2008 Page 606 of 882
REJ09B0108-0400