WM8351CGEB/RV WOLFSON [Wolfson Microelectronics plc], WM8351CGEB/RV Datasheet - Page 184
WM8351CGEB/RV
Manufacturer Part Number
WM8351CGEB/RV
Description
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM8351CGEBRV.pdf
(330 pages)
- Current page: 184 of 330
- Download datasheet (4Mb)
WM8351
w
The function of each GPIO pin is programmable by writing to the respective GPn register bits.
GPn_FN = 0000 selects the GPIO function and settings other than 0000 select various alternate
functions.
The GPIO function is also determined by the value of the GPn_DIR register bit. Note that, when
changing GPn_DIR, it is recommended to set GPn_FN = 0000 first.
When changing the function of a GPIO pin, (updating GPn_FN or GPn_DIR), it is recommended that
the following sequence of actions is taken sequentially.
Note that GPIO7 is automatically enabled as CSB in 3-wire and 4-wire control modes. GPIO6 is
automatically enabled as SDOUT in 4-wire control mode. These automatic selections take
precedence over all other GPIO6 and GPIO7 control fields.
R140 (8Ch
GPIO function
select 1
R141 (8Dh)
GPIO function
select 2
R142 (8Eh)
GPIO function
select 3
R143 (8Fh)
Table 125 Control Registers to Select GPIO Alternate Functions
20.2.2
ADDRESS
Set GPn_FN = 0000
Update the other GPIO configuration fields GPn_DB, GPn_PU, GPn_PD, GPn_CFG, GPn_DIR
If the new function is an input, ensure that the input trigger is in the inactive state (ie. logic 0 for a
function that is active High)
Set GPn_FN according to the new GPIO function
Read the GPIO Interrupt Status Register R30 (1Eh) to clear any GPIO Interrupt events
If any bit in Register R30 (1Eh) was set when read, then read the System Interrupts Register
R24 (18h) to clear the IRQ pin
SELECTING GPIO ALTERNATE FUNCTIONS
BIT
15:12
15:12
15:12
11:8
11:8
11:8
3:0
7:4
3:0
7:4
3:0
7:4
3:0
GP0_FN
GP1_FN
GP2_FN
GP3_FN
GP4_FN
GP5_FN
GP6_FN
GP7_FN
GP8_FN
GP9_FN
GP10_FN
GP11_FN
GP12_FN
LABEL
Depends
on status
of CONF
pins
DEFAULT
Selects function of GPIO0
Selects function of GPIO1
Selects function of GPIO2
Selects function of GPIO3
Selects function of GPIO4
Selects function of GPIO5
Selects function of GPIO6
Selects function of GPIO7
Selects function of GPIO8
Selects function of GPIO9
Selects function of GPIO10
Selects function of GPIO11
Selects function of GPIO12
DESCRIPTION
PD, April 2012, Rev 4.5
Production Data
184
Related parts for WM8351CGEB/RV
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
WM9701ALow Power AC97 Multimedia Audio Codec
Manufacturer:
WOLFSON Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
WM8973LGEFLSTEREO CODEC FOR PORTABLE AUDIO APPLICATIONS
Manufacturer:
WOLFSON Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Handset Receiver Speaker Driver With Wolfson Myzone Ambient Noise Cancellation
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Stereo Headphone Driver With Wolfson Myzonetm Ambient Noise Cancellation
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Mono CODEC with Speaker Driver and Video Buffer
Manufacturer:
WOLFSON [Wolfson Microelectronics plc]
Datasheet:
Part Number:
Description:
Stereo ADC with Microphone Input and Clock Generator
Manufacturer:
WOLFSON [Wolfson Microelectronics plc]
Datasheet:
Part Number:
Description:
WM9701ALow Power AC97 Multimedia Audio Codec
Manufacturer:
WOLFSON Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
WM8973LGEFLSTEREO CODEC FOR PORTABLE AUDIO APPLICATIONS
Manufacturer:
WOLFSON Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Manufacturer:
Wolfson Microelectronics plc
Datasheet: