HD64F2638F20J Datasheet, PDF (347/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 9 I/O Ports
Pin
PF3/LWR/
ADTRG/IRQ3
PF0/IRQ2
Selection Method and Pin Functions
The pin function is switched as shown below according to the operating mode,
the bus mode, A/D converter bits TRGS1 and TRGS0, and bit PF3DDR.
Operating
mode
Modes 4 to 6
Mode 7
Bus mode
16-bit bus
8-bit bus mode
—
mode
PF3DDR
—
0
1
0
1
Pin function LWR output PF3 input PF3 output PF3 input PF3 output
pin
pin
pin
pin
pin
ADTRG input pin^*1
IRQ3 input pin^*2
Notes: 1. ADTRG input when TRGS0 = TRGS1 = 1.
2. When used as an external interrupt input pin, do not use as an I/O
pin for another function.
The pin function is switched as shown below according to the bit PF0DDR.
PF0DDR
0
1
Pin function
PF0 input
IRQ2 input
PF0 output
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 297 of 1458