TMS370C722NT Datasheet, PDF (19/61 Pages) Texas Instruments – 8-BIT MICROCONTROLLER

TMS370Cx2x
8-BIT MICROCONTROLLER
SPNS018C – FEBRUARY 1993 – REVISED FEBRUARY 1997
peripheral file frame 2
Peripheral file frame 2 contains the digital I/O pin configuration and control registers. Table 12 and Table 13
detail the specific addresses, registers, and control bits within the peripheral file frame.
Table 12. Peripheral File Frame 2: Digital Port Control Registers
PF
P020
P021
P022
P023
P024
P025
P026
P027
P028
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
Reserved
Port A Control Register 2 (must be 0)
Port A Data
Port A Direction
Reserved
Port B Control Register 2 (must be 0)
Port B Data
Port B Direction
Reserved
P029
—
—
—
—
—
—
P02A
—
—
—
—
—
—
P02B
—
—
—
—
—
—
P02C
Port D Control Register 1 (must be 0)
—
P02D
Port D Control Register 2 (must be 0)†
—
P02E
Port D Data
—
P02F
Port D Direction
—
† _{To configure pin D3 as SYSCLK, set port D control register 2 = 08h.}
BIT 1
—
—
—
—
—
—
—
BIT 0
Port C
Control
Register 2
(must be 0)
Port C Data
Port C
Direction
—
—
—
—
APORT1
APORT2
ADATA
ADIR
BPORT1
BPORT2
BDATA
BDIR
CPORT1
CPORT2
CDATA
CDIR
DPORT1
DPORT2
DDATA
DDIR
PORT
A
B
C
D
‡ _{DPORT only}
Table 13. Port Configuration Register Setup
PIN
abcd
00q1
0–7
Data out q
0–7
Data out q
0
Data out q
3–7
Data out q
a = Port × Control Register 1‡
b = Port × Control Register 2
c = Data
d = Direction
abcd
00y0
Data in y
Data in y
Data in y
Data in y
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