TMS320VC5502 datasheet(92/189 Pages) TI

tên linh kiện	TMS320VC5502

Giải thích chi tiết về linh kiện	Fixed-Point Digital Signal Processor

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TMS320VC5502

Fixed-Point Digital Signal Processor

SPRS166H – APRIL 2001 – REVISED NOVEMBER 2004

3.12.2.4

Parallel GPIO Enable Register 1 (PGPIOEN1)

IO31EN

IO30EN

IO29EN

IO28EN

IO27EN

IO26EN

IO25EN

IO24EN

R/W, 0

IO23EN

IO22EN

IO21EN

IO20EN

IO19EN

IO18EN

IO17EN

IO16EN

R/W, 0

LEGEND: R = Read, W = Write, n = value at reset

Figure 3-37. Parallel GPIO Enable Register 1 Layout (0x4403)

Table 3-40. Parallel GPIO Enable Register 1 Bit Field Description

(1)

BIT NAME

BIT NO.

ACCESS

RESET VALUE

DESCRIPTION

IOxEN

15-0

R/W

0000000000000000

Enable or disable GPIO function of the corresponding I/O pins. See

Table 3-36, TMS320VC5502 PGPIO Cross-Reference.

•

IOxEN = 0:

GPIO function of corresponding signal is disabled, i.e., the pin

goes into a high-impedance state.

•

IOxEN = 1:

GPIO function of corresponding signal is enabled, i.e., the

signal supports its GPIO function.

(1)

x = value from 16 to 31

Functional Overview

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