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: 134/178页
文件大小: 2247K
代理商: SCD223110QCD
Intelligent Two-Channel LAN and WAN Communications Controller — CD2231
Datasheet
59
Receive Clock Option Register (RCOR)
CA
C8
B
R/W
Transmit Clock Option Register (TCOR)
C2
C0
B
R/W
Figure 10. Bit Rate Generator/DPLL
Period Register
(RBPR or TBPR)
Mux
Count Register
(RBCR or TBCR)
dec/inc
÷ N
Zero Detect
Adjustments
applied here
(for DPLL only)
Clk 0
Clk 1
Clk 2
Clk 3
Clk 4
RXCIN or TXCIN
RX bit clk
(for TX BRG only)
÷ 8
÷ 512
÷ 2048
÷ 128
÷ 32
System
Clock
Mux
0
1
2
3
4
5
6
7
From RCOR/TCOR
TLVal
res
dpllEn
Dpllmd1
Dpllmd0
ClkSel2
ClkSel1
ClkSel0
ClkSel2
ClkSel1
ClkSel0
res
Ext-1X
res
LLM
res
Table 4.
Clock Source Select (Sheet 1 of 2)
ClkSel2
ClkSel1
ClkSel0
Select
0
Clk 0
0
1
Clk 1
0
1
0
Clk 2
0
1
Clk 3
1
0
Clk 4
1
0
1
Reserved
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