SH7280 Datasheet, PDF (1183/1726 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family

Section 23 Pin Function Controller (PFC)
(3) SH7286
• Port B Control Register H1 (PBCRH1)
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
-
PB19MD[2:0]
-
PB18MD[2:0]
-
PB17MD[2:0]
-
Initial value: 0
0
0
0^*
0
0
0
0^*
0
0
0
0^*
0
R/W: R R/W R/W R/W R R/W R/W R/W R R/W R/W R/W R
Note: * The initial value is 1 during the on-chip ROM disabled external extension mode.
2
1
0
PB16MD[2:0]
0
0
0^*
R/W R/W R/W
Initial
Bit
Bit Name
Value
15

0
14 to 12 PB19MD[2:0] 000*
11

0
R/W
R
R/W
R
Description
Reserved
This bit is always read as 0. The write value should
always be 0.
PB19 Mode
Select the function of the PB19/A25/RASU/DREQ2
pin.
000: PB19 I/O (port)
001: A25 output (BSC)
010: RASU output (BSC)
011: Setting prohibited
100: Setting prohibited
101: Setting prohibited
110: Setting prohibited
111: DREQ2 input (DMAC)
Reserved
This bit is always read as 0. The write value should
always be 0.
Rev. 1.00 Jun. 26, 2008 Page 1153 of 1692
REJ09B0393-0100