Pin Functions; Port 3 Input Pull-Up Mos; Table 8.4 Port 3 Input Pull-Up Mos States - Renesas H8S Series Hardware Manual

8.3.4

Pin Functions

• P37/SERIRQ, P36/LCLK, P35/LRESET, P34/LFRAME, P33/LAD3, P32/LAD2, P31/LAD1,
P30/LAD0
The function of port 3 pins is switched as shown below according to the combination of the
LPC4E bit in HICR4 of LPC, LPC3E to LPC1E bits in HICR0, LMCE bit in LMCCR1, and
the P3nDDR bit. LPCENABLE in the following table is expressed by the following logical
expressions.
LPCENABLE = 1 : LPC4E + LPC3E + LPC2E + LPC1E + LMCE
LPCENABLE
P3nDDR
Pin function
Note: n = 7 to 0
8.3.5

Port 3 Input Pull-Up MOS

Port 3 has a built-in input pull-up MOS that can be controlled by software. Table 8.4 summarizes
the input pull-up MOS states.
Table 8.4 Port 3 Input Pull-Up MOS States
Reset
Off
[Legend]
Off: Always off.
On/Off: On when P3DDR = 0 and P3PCR = 1; otherwise off.
0
0
P3n input pins
Hardware Standby
Mode
Off
1
P3n output pins
Software Standby
Mode
On/Off
Rev. 3.00 Jul. 14, 2005 Page 173 of 986
Section 8 I/O Ports
1

LPC input/output pin
In Other Operations
On/Off
REJ09B0098-0300