HD64F2638F20J Datasheet, PDF (337/1512 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
9.10 Port E
9.10.1 Overview
Port E is an 8-bit I/O port. Port E has a data bus I/O function, and the pin functions change
according to the operating mode and whether 8-bit or 16-bit bus mode is selected.
Port E has an on-chip MOS input pull-up function that can be controlled by software.
Figure 9-18 shows the port E pin configuration.
Port E
Port E pins
Pin functions in modes 4 to 6
PE7 / D7
PE6 / D6
PE5 / D5
PE4 / D4
PE3 / D3
PE2 / D2
PE1 / D1
PE0 / D0
PE7 (I/O) / D7 (I/O)
PE6 (I/O) / D6 (I/O)
PE5 (I/O) / D5 (I/O)
PE4 (I/O) / D4 (I/O)
PE3 (I/O) / D3 (I/O)
PE2 (I/O) / D2 (I/O)
PE1 (I/O) / D1 (I/O)
PE0 (I/O) / D0 (I/O)
Pin functions in mode 7
PE7 (I/O)
PE6 (I/O)
PE5 (I/O)
PE4 (I/O)
PE3 (I/O)
PE2 (I/O)
PE1 (I/O)
PE0 (I/O)
Figure 9-18 Port E Pin Functions
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 287 of 1458