User guide

DS4830A User’s Guide
139
Table 15-1: GPIO Pins and Multiplexed Functions
Port
Index
Pin Name
Pin No.
Default
Function
Special
Function-1
Special function-1
enable
Special
Function-2
Special function-2
enable
Special
Function-3
Special function-3
enable
Special
function-4
Special function-4
enable
P0.0 GP12 19 GPIO ADC-S12
PINSEL.12 = 1 &
ADDATA.DIFF = 0
ADC-SHP1 SHCN.SMP_HLD1 = 1 ADC-D6P
PINSEL.12 = 1 &
ADDATA.DIFF =1
- -
P0.1 GP13 20 GPIO ADC-S13
PINSEL.13 = 1 &
ADDATA.DIFF = 0
ADC-SHN1 SHCN.SMP_HLD1 = 1 ADC-D6N
PINSEL.13 = 1 &
ADDATA.DIFF =1
- -
P0.2 GP14 21 GPIO ADC-S14
PINSEL.14 = 1 &
ADDATA.DIFF = 0
ADC-D7P
PINSEL.14 = 1 &
ADDATA.DIFF =1
SHEN1
SENR.INT_TRIG_EN1 =
0
- -
P0.3 GP15 22 GPIO ADC-S15
PINSEL.15 = 1 &
ADDATA.DIFF = 0
ADC-D7N
PINSEL.15 = 1 &
ADDATA.DIFF =1
- - - -
P0.4 DACPW0 32 GPIO DAC0
DACCFG.CFG0 = 01b or
10b
PW0
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
- - - -
P0.5 DACPW1 33 GPIO DAC1
DACCFG.CFG1 = 01b or
10b
PW1
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
- - - -
P0.6 PW8 30 GPIO PW8
PWMCFG.PWMEN = 1 &
PWMCN.M_EN = 1
- - - - - -
P0.7 PW9 29 GPIO PW9
PWMCFG.PWMEN = 1 &
PWMCN.M_EN = 1
- - - - - -
P1.0 MSDIO 24 GPIO 3W Data TWR.TWEN = 1 I2CM-SDA I2CCN_M.I2CEN=1 SPIM-DO SPICN_M.SPIEN=1 PW4
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
& PWMCFG.ALT_LOC = 1
P1.1 MSCL 26 GPIO 3W Clock TWR.TWEN = 1 I2CM-CLK I2CCN_M.I2CEN=1 SPIM-CL SPICN_M.SPIEN=1 PW6
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
& PWMCFG.ALT_LOC = 1
P1.2 MCS 27 GPIO 3W CS TWR.TWEN = 1 - - SPIM-CS SPICN_M.SPIEN=1 PW7
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
& PWMCFG.ALT_LOC = 1
P1.3 MSDI 25 GPIO - - - - SPIM-DI SPICN_M.SPIEN=1 PW5
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
& PWMCFG.ALT_LOC = 1
P1.4 REFINB 39 GPIO ADC-REFB
DACCFG.CFG4-7
*
= 01b
(any one or more DACs)
- - - - - -
P1.5 DACPW3 35 GPIO DAC3
DACCFG.CFG3
= 01b or
10b
PW3
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
- - - -
P1.6 DACPW4 36 GPIO DAC4
DACCFG.CFG4 = 01b or
10b
PW4
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
I2CM-SDA-
ALT
i2CCN_M.I2CM_ALT = 1 - -
P1.7 DACPW5 37 GPIO DAC5
DACCFG.CFG5 = 01b or
10b
PW5
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
I2CM-SCL-
ALT
i2CCN_M.I2CM_ALT = 1 - -
P2.0 GP0 4 GPIO ADC-S0
PINSEL.0 = 1 &
ADDATA.DIFF = 0
ADC-D0P
PINSEL.0 = 1 &
ADDATA.DIFF =1
PW0
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
& PWMCFG.ALT_LOC =
1
- -
P2.1 GP1 6 GPIO ADC-S1
PINSEL.1 = 1 &
ADDATA.DIFF = 0
ADC-D0N
PINSEL.1 = 1 &
ADDATA.DIFF =1
PW1
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
& PWMCFG.ALT_LOC =
1
REFOUT -
P2.2 GP6 12 GPIO ADC-S6
PINSEL.6 = 1 &
ADDATA.DIFF = 0
ADC-D3P
PINSEL.6 = 1 &
ADDATA.DIFF =1
PW2
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
& PWMCFG.ALT_LOC =
1
SDO SPICN_S.SPIEN=1
P2.3 GP7 13 GPIO ADC-S7
PINSEL.7 = 1 &
ADDATA.DIFF = 0
ADC-D3N
PINSEL.7= 1 &
ADDATA.DIFF =1
PW3
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
& PWMCFG.ALT_LOC =
1
SCS SPICN_S.SPIEN=1
P2.4 GP8 14 GPIO ADC-S8
PINSEL.8 = 1 &
ADDATA.DIFF = 0
ADC-D4P
PINSEL.8 = 1 &
ADDATA.DIFF =1
- - - -
P2.5 GP9 15 GPIO ADC-S9
PINSEL.9 = 1 &
ADDATA.DIFF = 0
ADC-D4N
PINSEL.9 = 1 &
ADDATA.DIFF =1
- - - -
P2.6 REFINA 31 GPIO ADC-REFA
DACCFG.CFG0-3
*
= 01b
(any one or more DACs)
- - - - - -
P2.7 DACPW7 40 GPIO DAC7
DACCFG.CFG7 = 01b or
10b
PW7
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
- -
P6.0 GP4 10 TCK ADC-S4
PINSEL.4 = 1 &
ADDATA.DIFF = 0
ADC-D2P
PINSEL.4 = 1 &
ADDATA.DIFF =1
- - - -
P6.1 GP5 11 TDI ADC-S5
PINSEL.5 = 1 &
ADDATA.DIFF = 0
ADC-D2N
PINSEL.5 = 1 &
ADDATA.DIFF =1
- - - -
P6.2 GP10 17 TMS ADC-S10
PINSEL.10 = 1 &
ADDATA.DIFF = 0
ADC-D5P
PINSEL.10 = 1 &
ADDATA.DIFF =1
- - - -
P6.3 GP11 18 TDO ADC-S11
PINSEL.11 = 1 &
ADDATA.DIFF = 0
ADC-D5N
PINSEL.11 = 1 &
ADDATA.DIFF =1
- - - -
P6.4 SHEN0 23 GPIO SHEN0
SENR.INT_TRIG_EN0 =
1
- - - - - -
P6.5 DACPW2 34 GPIO DAC2
DACCFG.CFG2 = 01b or
10b
PW2
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
CLKIN
+
- -
P6.6 DACPW6 38 GPIO DAC6
DACCFG.CFG6 = 01b or
10b
PW6
PWMCFG.PWMEN = 1
& PWMCN.M_EN = 1
- - - -
Notes:
• TCK: Test Access Port (TAP) Clock
• TDI: Test Access Port (TAP) Data Input
• TMS: Test Access Port (TAP) Mode Select
• TDO: Test Access Port (TAP) Data Output
•
* One or more DACs should be enabled.
•
+
External Clock is enabled when the external clock source is selected by one or more peripherals among
timers, PWM and Sample and Hold.
From a software perspective, each of the GPIO ports (Port0, Port1, Port2, and Port6) has six Special Function
Registers (POp, PIp, PDp, EIFp, EIEp and EIESp where p=0, 1, 2, or 6). Each GPIO port is designed to provide