alc203-lf Realtek Semiconductor Corporation, alc203-lf Datasheet - Page 29

• Manufacturer Part Number: alc203-lf
• Description: Two-channel Ac?97 2.3 Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

6.4.2 MX78 GPIO & Interrupt Status
Default: 0000h
Two-Channel AC’97 2.3 Audio Codec
11:10
Bit
15
14
13
12
9
8
7
6
5
4
3
2
1
0
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
NA
NA
NA
NA
R
R
R
Reserved
Reserved
Reserved
Reserved
S/PDINF-In Valid Interrupt Status (SPDIFIN_VIS).
Write 1 to clear this status bit and its interrupt.
S/PDINF-In Lock Interrupt Status (SPDIFIN_LIS).
Write 1 to clear this status bit and its interrupt.
JD2 Interrupt Status (JD2_IS)
Write 1 to clear this status bit.
GPIO1 Output Control
GPIO0 Output Control
JD1 Interrupt Status (JD1_IS)
Write 1 to clear this status bit.
GPIO1 Interrupt Status (GPIO1_IS). (When GPIO1 is used as input)
Write 1 to clear this status bit.
GPIO0 Interrupt Status (GPIO0_IS). (When GPIO0 is used as input)
Write 1 to clear this status bit.
Jack-Detect Event (JDEVT)
JDEVT = JDS1 | JDS2
Software can check this bit and MX7A.1 to know the status of JDx.
When MX7A.5=0, MX7A.1=JDS1.
When MX7A.5=1, MX7A.1=JDS2.
GPIO1 Input Status
GPIO0 Input Status
0: No SPDIFI Valid Interrupt.
1: SPDIFI Valid interrupt.
0: No SPDIFI Lock interrupt.
1: SPDIFI LOCK interrupt.
0: No JD2 interrupt.
1: JD2 interrupt.
0: Drive GPIO1 low.
1: Drive GPIO1 high.
0: Drive GPIO0 as low.
1: Drive GPIO0 as high.
0: No JD1 interrupt.
1: JD1 interrupt.
0: No GPIO1 interrupt.
1: GPIO1 interrupt.
0: No GPIO0 interrupt.
1: GPIO0 interrupt.
0: No Jack-Detect event occurs.
1: Jack-Detect event occurs.
0: GPIO1 is driven low by external device (input).
1: GPIO1 is driven high by external device (input).
0: GPIO0 is driven low by external device (input).
1: GPIO0 is driven high by external device (input).
25
Function
ALC203 DataSheet
Rev1.6