CHAPTER 14 PORT FUNCTIONS
User’s Manual U14359EJ4V0UM
489
(b) Port DL mode control register (PMCDL)
The port DL mode control register (PMCDL) can be read/written in 16-bit units.
If the higher 8 bits of PMCDL are used as port DL mode control register H (PMCDLH), and the lower 8 bits as
port DL mode control register L (PMCDLL), these two 8-bit port mode registers can be read/written in 8-bit or
1-bit units.
15
14
13
12
11
10
9
8
Address
After reset
Note
PMCDL PMCDL15 PMCDL14 PMCDL13 PMCDL12 PMCDL11 PMCDL10 PMCDL9 PMCDL8
FFFFF045H FFFFH/0000H
7
6
5
4
3
2
1
0
Address
PMCDL7 PMCDL6 PMCDL5 PMCDL4 PMCDL3 PMCDL2 PMCDL1 PMCDL0 FFFFF044H
Note
In ROMless modes 0 and 1, and single-chip mode 1: FFFFH
In single-chip mode 0:
0000H
Bit position
Bit name
Function
15 to 0
PMCDLn
(n = 15 to 0)
Port Mode Control
Specifies operation mode of PDLn pin.
0: I/O port mode
1: D15 to D0 output mode
Caution The D8 to D15 pins are in the input status in ROMless mode 1.
