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TMS370C686AFNT Datasheet, PDF (17/45 Pages) Texas Instruments – 8-BIT MICROCONTROLLER | |||
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TMS370Cx8x
8-BIT MICROCONTROLLER
SPNS035B âDECEMBER 1995 â REVISED FEBRUARY 1997
digital port-control registers
Peripheral file frame 2 contains the digital I/O pin configuration and control registers. Table 12 shows the specific
addresses, registers, and control bits within this peripheral file frame. Table 13 shows the port-configuration
register setup.
Table 12. Peripheral File Frame 2: Digital Port-Control Registers
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ PF BIT7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ P020
Reserved
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ P021
Port A Control Register 2 (must be 0)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ P022
Port A Data
P023
Port A Direction
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ P024
Reserved
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ P025
Port B Control Register 2 (must be 0)
ÃÃÃ ÃÃÃ P026
Port B Data
ÃÃÃ ÃÃÃ P027
Port B Direction
ÃÃÃ ÃÃÃ P028
Reserved
ÃÃÃ ÃÃÃ P029
Port C Control Register 2 (must be 0)
ÃÃÃ ÃÃÃ P02A
Port C Data
P02B
Port C Direction
ÃÃÃ ÃÃÃ P02C
Port D Control Register 1 (must be 0)
â
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ P02D
Port D Control Register 2 (must be 0)â
â
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ P02E
Port D Data
â
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ P02F
Port D Direction
â
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ â To configure pin D3 as SYSCLK, set port D control register 2 = 08h.
BIT 1
â
â
â
â
BIT 0
â
â
â
â
APORT1
APORT2
ADATA
ADIR
BPORT1
BPORT2
BDATA
BDIR
CPORT1
CPORT2
CDATA
CDIR
DPORT1
DPORT2
DDATA
DDIR
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