w83194br-pt Winbond Electronics Corp America, w83194br-pt Datasheet - Page 10

• Manufacturer Part Number: w83194br-pt
• Description: Stepless Via Pt Main Clock Generator
• Manufacturer: Winbond Electronics Corp America

7. I
7.1 Register 0: Frequency Select (Default = C4h)
7.2 Register 1: CPU Clock Control (1 = Enable, 0 = Stopped) (Default = E3h)
BIT
BIT
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
2
C CONTROL AND STATUS REGISTERS
EN_SAFE_
EN_SPSP
EN_SSEL
SSEL [3]
SSEL [2]
SSEL [1]
SSEL [0]
SSEL [4]
PIN NO
42, 41
35, 34
40, 39
NAME
FREQ
-
-
-
-
-
PWD
PWD
X
X
X
X
1
1
0
0
0
1
0
0
1
1
1
0
Frequency selection by software via I2C
Enable software program FS [4:0].
0 = Select frequency by hardware.
1= Select frequency by software I2C - Bit 7~ 4, 2.
Frequency selection bit 4
Enable Spread Spectrum in the frequency table.
0 = Normal
1 = Spread Spectrum enabled
Enable reload safe frequency when the watchdog is timeout.
0 = reload the FS [4:0] latched pins when watchdog time out.
1 = reload the safe frequency bit defined at Register 5 bit 4~0.
CPUT / C_CS output control
CPUCLKT1 / C1 output control
CPUCLKT0 / C0 output control
Reserved. Default: 0 (Read only)
Invert Power on latched value of FS3 pin. Default: 0 (Read only)
Invert Power on latched value of FS2 pin. Default: 0 (Read only)
Invert Power on latched value of FS1 pin. Default: 1 (Read only)
Invert Power on latched value of FS0 pin. Default: 1 (Read only)
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DESCRIPTION
DESCRIPTION
Publication Release Date: April 13, 2005
W83194BR-PT
Revision 1.1