参数资料
型号: SCD223110QCD
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 2 CHANNEL(S), 256K bps, SERIAL COMM CONTROLLER, PQFP100
封装: METRIC, QFP-100
文件页数: 162/178页
文件大小: 2247K
代理商: SCD223110QCD
CD2231 — Intelligent Two-Channel LAN and WAN Communications Controller
84
Datasheet
7.0
Programming Examples
This section provides some examples of the CD2231 programming. Included are examples of
global and per-channel initialization, and two interrupt service routines. The code is written in
Borland Turbo C++.
Figure 20. Initialization Sequence for the CD2231
Power Up
Wait for GFRCR
to be non-zero
First set up CAR
channel-specific register
Set up channel-specific
registers in any order:
CMR, COR1–5, TBPR, TCOR,
RBPR, RCOR, CPSR, LIVR,
GT1–2, RFAR1–4 (sync),
SCHR1–4, SCR, RTPR (async)
Last step in channel
configuration:
CCR, IER
A channel is
configured
Disable
RX, TX
(CAR–CCR)
Set up Global registers:
TPR and PILR1–3,
‘RESET ALL’
Command
(any CCR)
A host command
Single channel
reconfiguration
Do not issue a
‘RESET ALL' command
immediately after power up
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