NEC VR4181 mPD30181, Руководство пользователя

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CHAPTER 13 GENERAL PURPOSE I/O UNIT (GIU)
User’s Manual U14272EJ3V0UM
246
13.3.1 GPMD0REG (0x0B00 0300)
(1/2)
Bit 15 14 13 12 11 10 9 8
Name GP7MD1 GP7MD0 GP6MD1 GP6MD0 GP5MD1 GP5MD0 GP4MD1 GP4MD0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
RTCRST 0 0 0 0 0 0 0 0
Other resets
Note Note Note Note Note Note Note Note
Bit 7 6 5 4 3 2 1 0
Name GP3MD1 GP3MD0 GP2MD1 GP2MD0 GP1MD1 GP1MD0 GP0MD1 GP0MD0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
RTCRST 0 0 0 0 0 0 0 0
Other resets Note Note Note Note Note Note Note Note
Bit Name Function
15, 14 GP7MD(1:0) These bits control direction and function of the GPIO7 pin as follows:
00 : General-purpose input
01 : RFU
10 : General-purpose output
11 : SIU2 DTR2# output
13, 12 GP6MD(1:0) These bits control direction and function of the GPIO6 pin as follows:
00 : General-purpose input
01 : RFU
10 : General-purpose output
11 : SIU2 RTS2# output
11, 10 GP5MD(1:0) These bits control direction and function of the GPIO5 pin as follows:
00 : General-purpose input
01 : SIU2 DCD2# input
10 : General-purpose output
11 : RFU
9, 8 GP4MD(1:0) These bits control direction and function of the GPIO4 pin as follows:
00 : General-purpose input
01 : RFU
10 : General-purpose output
11 : RFU
7, 6 GP3MD(1:0) These bits control direction and function of the GPIO3 pin as follows:
00 : General-purpose input
01 : RFU
10 : General-purpose output
11 : Programmable chip select 0 output
Note Holds the value before reset