參數(shù)資料
型號: EM78568
廠商: Electronic Theatre Controls, Inc.
英文描述: 8-BIT MICRO-CONTROLLER for FRS
中文描述: 8位微控制器為FRS
文件頁數(shù): 33/54頁
文件大?。?/td> 494K
代理商: EM78568
EM78568
8-bit Micro-controller for FRS
__________________________________________________________________________________________________________________________________________________________________
* This specification are subject to be changed without notice.
07/28/2004 V3.5
IOCE (TONE1 extra control bits, CTCSS control switches)
PAGE0 (Interrupt mask, TONE1 extra three control bits)
7
6
5
-
-
-
Bit 0 ~ Bit 2 (T18 ~ T1A) : Most significant 3 bits of Tone generator 1‘s frequency divider and power control
These 3 bits and other 8 bits (IOCA PAGE0 bit 7 ~ bit0) are assembled as 11-bit frequency divider for Tone
generator 1
Bit 3 ~ Bit 7 = 0 :
(undefined) not allowed to use
PAGE1 (CTCSS control switches)
7
6
5
4
3
TXPWR RXPWR BPFPWR
LPFPWR
ASW4
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
Bit 0(ASW1) : Analog switch-1 control for multi-plexer in the CTCSS block
0
Select VRX1 input
1
Select VTX1 input
Bit 1(ASW2) : Analog switch-2 control for multi-plexer in the CTCSS block
0
Select VRX2 output
1
Select VTX2 output
Bit 2(ASW3) : Analog switch-3 control for multi-plexer in the CTCSS block
0
Select VRX3 input
1
Select VTX3 input
Bit 3(ASW4) : Analog switch-4 control for multi-plexer in the CTCSS block
0
Select VRX4 input
1
Select VTX4 input
Bit 4(LPFPWR) : Power control for sub-audio LPF in the CTCSS block. 0/1
disable/enable
Bit 5(BPFPWR) : Power control for audio BPF in the CTCSS block. 0/1
disable/enable
Bit 6(RXPWR) : RX power control for the CTCSS block 0/1
disable/enable
Bit 7(TXPWR) : TX power control for the CTCSS block 0/1
disable/enable
4
-
3
-
2
1
T19
R/W-0
0
T18
R/W-0
T1A
R/W-0
2
1
0
ASW3
R/W-0
ASW2
R/W-0
ASW1
R/W-0
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