SH7280 Datasheet, PDF (1251/1726 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 PD21MD[2:0] 000* R/W PD21 Mode
Select the function of the
PD21/D21/IRQ5/TIC5VS/TXD4 pin.
000: PD21 I/O (port)
001: D21 I/O (BSC)
010: Setting prohibited
011: IRQ5 input (INTC)
100: TIC5VS input (MTU2S)
101: TXD4 output (SCI)
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 PD20MD[2:0] 000* R/W PD20 Mode
Select the function of the
PD20/D20/IRQ4/TIC5WS/SCK4/POE8 pin.
000: PD20 I/O (port)
001: D20 I/O (BSC)
010: Setting prohibited
011: IRQ4 input (INTC)
100: TIC5WS input (MTU2S)
101: SCK4 I/O (SCI)
110: POE8 input (POE2)
111: Setting prohibited
Note: * The initial value is 1 during the on-chip ROM disabled 32-bit external extension mode.
Rev. 1.00 Jun. 26, 2008 Page 1221 of 1692
REJ09B0393-0100