Advanced Information
WM8753L
READSEL STATUS REGISTER BIT
LABEL
SR_IDHI
DEFAULT
DESCRIPTION
[3:1] VALUE
ADDRESS
000
SR0 (0h)
Device ID high
7:0
7:0
7:0
7:0
7
87h
53h
01h
00h
0
Indicates that device is an 8753L
001
010
011
100
SR1 (1h)
Device ID low
SR_IDLO
SR_REV
SR_CAP
SR_TSD
SR2 (2h)
Device revision
Device revision
SR3 (3h)
Device capabilities
Device capabilities.
SR4 (4h)
Thermal shutdown state.
1 = Thermal shutdown detected.
0 = Normal operation.
Device status
6
SR_HPDET
0
Headphone or speaker detect state (see
HPSWEN and HPSWPOL).
1 = Headphones connected
0 = Headphones disconnected
5
4
3
1
0
7
6
5
4
3
SR_GPIO5
SR_GPIO4
SR_GPIO3
SR_IMICDET
SR_IMICSHT
SR_ITSD
0
0
0
0
0
0
0
0
0
0
GPIO5 state.
0 = GPIO5 pin low
1 = GPIO5 pin high
GPIO4 state.
0 = GPIO4 pin low
1 = GPIO4 pin high
GPIO3 state.
0 = GPIO3 pin low
1 = GPIO3 pin high
Microphone bias threshold state
1 = above threshold
0 = below threshold
Microphone bias short circuit state.
1 = Bias short circuit detected
0 = Bias current OK
101
SR5 (5h)
Interrupt status
Thermal shutdown interrupt
1 = Interrupt.
0 = No interrupt.
SR_IHPDET
SR_IGPIO5
SR_IGPIO4
SR_IGPIO3
Headphone detection interrupt.
1 = Interrupt.
0 = No interrupt.
GPIO5 interrupt.
1 = Interrupt.
0 = No interrupt.
GPIO4 interrupt.
1 = Interrupt.
0 = No interrupt.
GPIO3 interrupt.
1 = Interrupt.
0 = No interrupt.
1
0
SR_IMICDET
SR_IMICSHT
0
0
Microphone bias threshold interrupt
Microphone bias short circuit interrupt
Table 61 Status Words
AI Rev 3.1 June 2004
64
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
