Function Of Registers - NEC UPD98413 User Manual

5.3 Function of Registers

(1) Device general mode register (MDDGEN)
The MDDGEN register sets the modes related to general operation of uPD98413.
Register Address
Name
MDDGEN 0000H
31 30 29 28
Reserved
15 14 13 12
Reserved
Bit Field
D31-D24 Reserved
D23-
D16 GPIOM[7:0]
D15-D18 Reserved
D8 APIMM
D7 APIM
MIFM
D6
D5-D0 Reserved
CHAPTER 5 REGISTERS
Common register
Access Default
R/W 00000080 H
27 26 25 24
11 10 9 8
APIMM APIM MIFM
Set to 0.
Selects the input or output of the general purpose I/O pins.
1: Output 0: Input
Set to 0.
Selects the multi-PHY mode of ATM/POS interface.
1: Status polling 0: Direct status indication
Selects the function of ATM/POS interface.
1: UTOPIA L3 0: POS-PHY L3
Selects the Big or Little endian mode of the management interface.
1: Big endian 0: Little endian
Set to 0.
PRELIMINARY
23 22 21 20
GPIOM[7:0]
7 6 5 4
Function
19 18 17 16
3 2 1 0
Reserved
Default
0
0
0
0
1
0
0
NEC confidential and Proprietary
169