Maxim-integrated DS4830 Optical Microcontroller Manuel d'utilisateur Page 127
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DS4830 User’s Guide
127
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
MDIO
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
MCL
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
MDI
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
-
-
-
-
P1.7
DACPW5
37
GPIO
DAC5
DACCFG.CFG5 = 01b or
10b
PW5
PWMCFG.PWMEN = 1 &
PWMCN.M_EN = 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
-
-
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 programming
flexibility for any application. The associated registers and their module addresses are listed in Table 15-2. The user
should not write to any reserved bits as this may cause undesired behavior.
- OpticalMicrocontroller 1
- User’sGuide 1
- Contents 2
- SECTION 1 – OVERVIEW 9
- DS4830 User’s Guide 10
- SECTION 2 – ARCHITECTURE 11
- 2.2 – Register Space 12
- 2.3 – Memory Types 13
- 2.5 – Data Alignment 20
- 2.6 – Reset Conditions 20
- 2.7 – Clock Generation 22
- SECTION 5 – INTERRUPTS 36
- 5.1 – Servicing Interrupts 37
- 6.1 – Detailed Description 42
- 6.3 – DAC Code Examples 45
- 7.1 – Detailed Description 46
- 7.3 – ADC Code Examples 58
- SECTION 8 – SAMPLE AND HOLD 60
- 9.1 – Detailed Description 68
- SECTION 10 – I 76
- SECTION 11 – I 89
- C-COMPATIBLE SLAVE INTERFACE 89
- 11.1 – Detailed Description 90
- 12.2 – SPI System Errors 101
- 12.3 – SPI Interrupts 102
- SECTION 13 – 3-WIRE 110
- Using PWMCN and PWMDATA 113
- Core Clock 120
- FrequencyClockPWM 123
- FrequencyFramePWM 123
- * = 01b 127
- MULTIPLIER 140
- SECTION 19 – WATCHDOG TIMER 146
- 20.1 – TAP Controller 150
- 20.2 – TAP State Control 151
- 20.3 – Communication via TAP 152
- 21.2 – Debug Mode 160
- 22.1 – Detailed Description 169
- 22.2 – Bootloader Operation 171
- 22.3 – Bootloader Commands 173
- SECTION 23 – PROGRAMMING 179
- SECTION 24 – INSTRUCTION SET 192
- SECTION 25 – UTILITY ROM 220
- 25.4 – Utility ROM Examples 227
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