HD64F2168 Datasheet, PDF (246/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

8.6.4 System Control Register 2 (SYSCR2)
SYSCR2 controls the current specifications for the port 6 input pull-up MOSs and address data
multiplex operation.
Bit Bit Name
7, 6 
5
P6PUE
4

3
ADMXE
2 to 0 
Initial Value
All 0
0
0
0
All 0
R/W Description
R/W Reserved
The initial value should not be changed.
R/W Port 6 Input Pull-Up Extra
Selects the current specification for the input pull-up
MOS connected by means of KMPCR settings.
0: Standard current specification is selected
1: Current-limit specification is selected
R/W Reserved
The initial value should not be changed.
R/W Address data multiplex bus interface enable
0: Normal extended bus interface
1: Address data multiplex extended bus interface
R/W Reserved
The initial value should not be changed.
8.6.5 Noise Canceler Enable Register (P6NCE)
P6NCE enables or disables the noise canceler circuit at port 6.
Bit Bit Name Initial Value R/W Description
7
P67NCE 0
R/W In 16 bit bus mode in extended mode:
6
P66NCE 0
R/W Port 6 operates as the data pin (D7 to D0).
5
P65NCE 0
4
P64NCE 0
3
P63NCE 0
2
P62NCE 0
1
P61NCE 0
R/W ^{In other mode:}
R/W ^{Noise canceler circuit is enabled and the pin state is}
fetched in the P6DR in the sampling cycle set by the
R/W _P6NCCS.
R/W _{The operating state changes according to the other}
R/W ^{control bits. Check the pin functions.}
0
P60NCE 0
R/W
Rev. 3.00, 03/04, page 206 of 830