NEC PD703114 User Manual page 575

(2) Setting of I/O mode and control mode
The port DL mode register (PMDL) is used to set the I/O mode of port DL and the port DL mode control
register (PMCDL) is used to set the operation in control mode.
(a) Port DL mode register (PMDL)
The PMDL register can be read or written in 16-bit units.
When using the higher 8 bits of the PMDL register as the PMDLH register and the lower 8 bits as the
PMDLL register, it can be read or written in 8-bit or 1-bit units.
15 14
PMDL PMDL15 PMDL14
7 6
PMDL7 PMDL6
Bit position Bit name
15 to 0 PMDLn
(n = 15 to 0)
(b) Port DL mode control register (PMCDL)
The PMCDL register can be read or written in 16-bit units.
When using the higher 8 bits of the PMCDL register as the PMCDLH register and the lower 8 bits as the
PMCDLL register, it can be read or written in 8-bit or 1-bit units.
15 14
PMCDL PMCDL15 PMCDL14
7 6
PMCDL7 PMCDL6
Note 0000H : Single-chip mode
FFFFH : ROMless mode
Bit position Bit name
15 to 0 PMCDLn
(n = 15 to 0)
CHAPTER 12 PORT FUNCTIONS
13 12 11
PMDL13 PMDL12 PMDL11
5 4 3
PMDL5 PMDL4 PMDL3
Specifies input/output mode of PDLn pin.
0: Output mode (output buffer on)
1: Input mode (output buffer off)
13 12 11
PMCDL13 PMCDL12 PMCDL11
5 4 3
PMCDL5 PMCDL4 PMCDL3
Specifies operation mode of PDLn pin.
0: I/O port mode
1: AD15 to AD0 I/O mode
User's Manual U15195EJ5V0UD
10 9 8
PMDL10 PMDL9 PMDL8
2 1 0
PMDL2 PMDL1 PMDL0
Function
10 9 8
PMCDL10 PMCDL9 PMCDL8
2 1 0
PMCDL2 PMCDL1 PMCDL0
Function
Address After reset
FFFFF025H FFFFH
Address
FFFFF024H
Note
Address After reset
FFFFF045H 0000H/FFFFH
Address
FFFFF044H
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