Texas Instruments TMS320F28069

142
TMS320F28069 , TMS320F28068 , TMS320F28067 , TMS320F28066
TMS320F28065, TMS320F28064, TMS320F28063, TMS320F28062
SPRS698F –NOVEMBER 2010–REVISED MARCH 2016 www.ti.com
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Product Folder Links: TMS320F28069 TMS320F28068 TMS320F28067 TMS320F28066 TMS320F28065
TMS320F28064 TMS320F28063 TMS320F28062
Detailed Description Copyright © 2010–2016, Texas Instruments Incorporated
6.9.15 General-Purpose Input/Output (GPIO) MUX
The GPIO MUX can multiplex up to three independent peripheral signals on a single GPIO pin in addition
to providing individual pin bit-banging I/O capability.
The device supports 45 GPIO pins. The GPIO control and data registers are mapped to Peripheral
Frame 1 to enable 32-bit operations on the registers (along with 16-bit operations). Table 6-70 shows the
GPIO register mapping.
Table 6-70. GPIO Registers
NAME ADDRESS SIZE (×16) DESCRIPTION
GPIO CONTROL REGISTERS (EALLOW PROTECTED)
GPACTRL 0x6F80 2 GPIO A Control Register (GPIO0 to 31)
GPAQSEL1 0x6F82 2 GPIO A Qualifier Select 1 Register (GPIO0 to 15)
GPAQSEL2 0x6F84 2 GPIO A Qualifier Select 2 Register (GPIO16 to 31)
GPAMUX1 0x6F86 2 GPIO A MUX 1 Register (GPIO0 to 15)
GPAMUX2 0x6F88 2 GPIO A MUX 2 Register (GPIO16 to 31)
GPADIR 0x6F8A 2 GPIO A Direction Register (GPIO0 to 31)
GPAPUD 0x6F8C 2 GPIO A Pull Up Disable Register (GPIO0 to 31)
GPBCTRL 0x6F90 2 GPIO B Control Register (GPIO32 to 44)
GPBQSEL1 0x6F92 2 GPIO B Qualifier Select 1 Register (GPIO32 to 44)
GPBQSEL2 0x6F94 2 GPIO B Qualifier Select 2 Register
GPBMUX1 0x6F96 2 GPIO B MUX 1 Register (GPIO32 to 44)
GPBMUX2 0x6F98 2 GPIO B MUX 2 Register (GPIO50 to 58)
GPBDIR 0x6F9A 2 GPIO B Direction Register (GPIO32 to 44)
GPBPUD 0x6F9C 2 GPIO B Pull Up Disable Register (GPIO32 to 44)
AIOMUX1 0x6FB6 2 Analog, I/O mux 1 register (AIO0 to AIO15)
AIODIR 0x6FBA 2 Analog, I/O Direction Register (AIO0 to AIO15)
GPIO DATA REGISTERS (NOT EALLOW PROTECTED)
GPADAT 0x6FC0 2 GPIO A Data Register (GPIO0 to 31)
GPASET 0x6FC2 2 GPIO A Data Set Register (GPIO0 to 31)
GPACLEAR 0x6FC4 2 GPIO A Data Clear Register (GPIO0 to 31)
GPATOGGLE 0x6FC6 2 GPIO A Data Toggle Register (GPIO0 to 31)
GPBDAT 0x6FC8 2 GPIO B Data Register (GPIO32 to 44)
GPBSET 0x6FCA 2 GPIO B Data Set Register (GPIO32 to 44)
GPBCLEAR 0x6FCC 2 GPIO B Data Clear Register (GPIO32 to 44)
GPBTOGGLE 0x6FCE 2 GPIO B Data Toggle Register (GPIO32 to 44)
AIODAT 0x6FD8 2 Analog I/O Data Register (AIO0 to AIO15)
AIOSET 0x6FDA 2 Analog I/O Data Set Register (AIO0 to AIO15)
AIOCLEAR 0x6FDC 2 Analog I/O Data Clear Register (AIO0 to AIO15)
AIOTOGGLE 0x6FDE 2 Analog I/O Data Toggle Register (AIO0 to AIO15)
GPIO INTERRUPT AND LOW POWER MODES SELECT REGISTERS (EALLOW PROTECTED)
GPIOXINT1SEL 0x6FE0 1 XINT1 GPIO Input Select Register (GPIO0 to 31)
GPIOXINT2SEL 0x6FE1 1 XINT2 GPIO Input Select Register (GPIO0 to 31)
GPIOXINT3SEL 0x6FE2 1 XINT3 GPIO Input Select Register (GPIO0 to 31)
GPIOLPMSEL 0x6FE8 2 LPM GPIO Select Register (GPIO0 to 31)
NOTE
There is a two-SYSCLKOUT cycle delay from when the write to the GPxMUXn/AIOMUXn
and GPxQSELn registers occurs to when the action is valid.