TMS370 datasheet(23/73 Pages) TI

23 / 73 page

TMS370Cx6x

8-BIT MICROCONTROLLER

SPNS033C – SEPTEMBER 1995 – REVISED FEBRUARY 1997

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

digital port control

Peripheral file frame 2 contains the digital I/O pin configuration and control registers. Table 15 lists the specific

addresses, registers, and control bits within this peripheral file frame.

Table 15. Peripheral File Frame 2: Digital Port Control Registers

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

REG

P020

Reserved

APORT1

P021

Port A Control Register 2

APORT2

P022

Port A Data

ADATA

P023

Port A Direction

ADIR

P024

Reserved

BPORT1

P025

Port B Control Register 2

BPORT2

P026

Port B Data

BDATA

P027

Port B Direction

BDIR

P028

Reserved

CPORT1

P029

Port C Control Register 2

CPORT2

P02A

Port C Data

CDATA

P02B

Port C Direction

CDIR

P02C

Port D Control Register 1

—

DPORT1

P02D

Port D Control Register 2†

—

DPORT2

P02E

Port D Data

—

DDATA

P02F

Port D Direction

—

DDIR

† To configure pin D3 as SYSCLK, set port D control register 2 = 08h.

Table 16. Port Configuration Register Setup

INPUT

OUTPUT

FUNCTION A

FUNCTION B

(

µP MODE)

PORT

XPORT1 = 0‡

XPORT2 = 0

XDATA = y

XDIR = 0

XPORT1 = 0‡

XPORT2 = 0

XDATA = q

XDIR = 1

XPORT1 = 0‡

XPORT2 = 1

XDATA = x

XDIR = x

XPORT1 = 1‡

XPORT2 = 1

XDATA = x

XDIR = x

0–7

Data In y

Data Out q

Data Bus

Reserved

0–7

Data In y

Data Out q

Low ADDR

Reserved

0–7

Data In y

Data Out q

Hi ADDR

Reserved

Data In y

Data Out q

SYSCLK

R/W

CSPF

CSH1

CSE1

SYSCLK

R/W

—

EDS

WAIT

XPORT1 = 1

XPORT2 =0

XDATA = x

XDIR = x

Not defined

‡ DPORT only

TMS370 Datasheet(PDF) 23 Page - Texas Instruments

TMS370 Datasheet(HTML) 23 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73

Datasheet Download

Link URL