SH7280 Datasheet, PDF (1178/1726 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family

Section 23 Pin Function Controller (PFC)
Initial
Bit
Bit Name
Value R/W Description
7

0
R
Reserved
This bit is always read as 0. The write value should
always be 0.
6 to 4 PB9MD[2:0] 000
R/W PB9 Mode
Select the function of the PB9/USPND pin.
000: PB9 I/O (port)
001: Setting prohibited
010: Setting prohibited
011: Setting prohibited
100: Setting prohibited
101: USPND output (USB)
110: Setting prohibited
111: Setting prohibited
3

0
R
Reserved
This bit is always read as 0. The write value should
always be 0.
2 to 0 PB8MD[2:0] 000* R/W PB8 Mode
Select the function of the
PB8/A20/WAIT/IRQ7/POE8/SCK0 pin.
000: PB8 I/O (port)
001: A20 output (BSC)
010: WAIT input (BSC)
011: IRQ7 input (INTC)
100: POE8 input (POE2)
101: SCK0 I/O (SCI)
110: Setting prohibited
111: Setting prohibited
Note: * The initial value is 1 during the on-chip ROM disabled external extension mode.
Rev. 1.00 Jun. 26, 2008 Page 1148 of 1692
REJ09B0393-0100