p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 187

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 8 I/O Ports
Section 8 I/O Ports
Table 8.1 is a summary of the port functions. The pins of each port also function as input/output
pins of peripheral modules and interrupt input pins. Each input/output port includes a data
direction register (DDR) that controls input/output and data registers (DR and ODR) that store
output data. DDR, DR, and ODR are not provided for an input-only port.
Ports 1 to 3 and P43 to P45 have on-chip input pull-up MOSs. Port 1 to 3 can drive LEDs (with 5-
mA current sink).
P47 and P52 in the H8S/2125 are NMOS push-pull output.
Rev. 1.00 Sep. 21, 2006 Page 149 of 658
REJ09B0310-0100