SH7065 Datasheet, PDF (676/941 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Section 17 Pin Function Controller (PFC)
PB6/BREQ. PBIORL is enabled when port B pins function as general input/output pins (PB13 to
PB6), and disabled otherwise.
When port B pins function as PB13 to PB6, a pin becomes an output when the corresponding bit
in PBIORL is set to 1, and an input when the bit is cleared to 0.
PBIORL is initialized to H'0000 by an external power-on reset, but is not initialized by a WDT
reset, in standby mode, or in sleep mode.
17.3.7 Port B Control Register H2 (PBCRH2)
Port B control register H2 (PBCRH2) is a 16-bit readable/writable register that selects the
functions of the upper 8 multiplex pins in port B.
PBCRH2 selects the functions of port B pins PB23/CASHH1/TxD1/TEND0 to PB16/CASLL0.
Port B includes bus control signals (CASLL0, CASLL1, CASLH0, CASLH1, CASHL0,
CASHL1, CASHH0, and CASHH1) and DMAC control signals (TEND0 and TEND1), but
register settings relating to the selection of these pin functions may not be valid in all operating
modes. For details, see table 17.10, Pin Functions in Each Operating Mode.
PBCRH2 is initialized to H'0000 by an external power-on reset, but is not initialized by a WDT
reset, in standby mode, or in sleep mode.
Port B Control Register H2 (PBCRH2)
Bit: 15
14
13
12
11
10
9
8
PB23 PB23 PB22 PB22
—
PB21
—
PB20
MD1 MD0 MD1 MD0
MD
MD
Initial value:
0
0
0
0
0
0
0
0
R/W: R/W
R/W
R/W
R/W
R
R/W
R
R/W
Bit: 7
6
5
4
3
2
1
0
PB19 PB19 PB18 PB18
—
PB17
—
PB16
MD1 MD0 MD1 MD0
MD
MD
Initial value:
0
0
0
0
0
0
0
0
R/W: R/W
R/W
R/W
R/W
R
R/W
R
R/W
Rev. 5.00 Sep 11, 2006 page 654 of 916
REJ09B0332-0500