HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 208

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

8.4.3
P3PCR controls the port 3 on-chip input pull-up MOSs on a bit-by-bit basis.
Bit
7
6
5
4
3
2
1
0
8.4.4
Operating
Mode
LPCmE
HI12E
P3nDDR
Pin Function
Note:*
Rev. 2.0, 08/02, page 168 of 788
P37/D15/HDB7/SERIRQ*, P36/D14/HDB6/LCLK*, P35/D13/HDB5//5(6(7*,
P34/D12/HDB4//)5$0(*, P33/D11/HDB3/LAD3*, P32/D10/HDB2/LAD2*,
P31/D9/HDB1/LAD1*, P30/D8/HDB0/LAD0*
The pin function is switched as shown below according to the combination of the HI12E bit in
SYSCR2, the LPC3E to LPC1E bits in HICR0 of host interface (LPC), the P3nDDR bit, and
operating mode.
Bit Name
P37PCR
P36PCR
P35PCR
P34PCR
P33PCR
P32PCR
P31PCR
P30PCR
Pin Functions
*: Not supported by the H8S/2148B.
Port 3 Pull-Up MOS Control Register (P3PCR)
The combination of bits not described in the above table must not be used.
m = 3 to 1: LPC input/output pins (SERIRQ, LCLK, /5(6(7, /)5$0(, LAD3 to LAD0)
when at least one of LPC3E to LPC1E is set to 1.
n = 7 to 0
Mode 1, 2, 3
input/output
(EXPE = 1)
D15 to D8
0
0
0
0
0
0
0
0
Initial Value
All 0
pins
—
0
P37 to P30
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
input pins
0
Description
In modes 2 and 3 (when EXPE = 0), the input pull-
up MOS is turned on when a P3PCR bit is set to 1
in the input port state.
The input pull-up MOS function cannot be used
when the host interface is enabled.
0
P37 to P30
output pins
Mode 2, 3 (EXPE = 0)
All 0
1
input/output
HDB7 to
HDB0
pins
—
1
input/output
Not all 0
LPC
pins
0
0