ST92195C STMicroelectronics, ST92195C Datasheet - Page 204

• Manufacturer Part Number: ST92195C
• Description: 48-96 Kbyte Rom Hcmos Mcu With On-screen Display And Teletext Data Slicer
• Manufacturer: STMicroelectronics

VOLTAGE SYNTHESIS (Cont’d)
7.12.3 Register Description
VS
(VSDR1)
R254 - Read/Write
Register Page: 59
Reset Value: 0000 0000 (00h)
Bit 7 = VSE: VS enable bit.
0: VS Tuning Converter disabled (i.e. the clock is
1: VS Tuning Converter enabled.
Bit 6 = VSWP: VS Output Select
This bit controls which VS output is enabled to out-
put the VS signal.
0: VSO1 output selected
1: VSO2 output selected
Bit 5:0 = VD[13:8] Tuning word bits.
These bits are the 6 most significant bits of the
Tuning word forming the PWM selection. The
VD13 bit is the MSB.
VSE
not forwarded to the VS counter and the 2 out-
puts are set to 1 (idle state)
7
DATA
VSWP VD13
6
AND
5
VD12
CONTROL
4
VD11
ST92195C/D - VOLTAGE SYNTHESIS TUNING CONVERTER (VS)
3
VD10
2
REGISTER
VD9
1
VD8
0
1
VS
(VSDR2)
R255 - Read/Write
Register Page: 59
Reset Value: 0000 0000 (00h)
Bit 7:0 = VD[7:0] Tuning word bits.
These bits are the 8 least significant data bits of
the VS Tuning word. All bits are accessible. Bits
VD6 - VD0 form the BRM pulse selection. VD7 is
the LSB of the 7 bits forming the PWM selection.
VD7
7
DATA
VD6
VD5
AND
VD4
CONTROL
VD3
VD2
REGISTER
VD1
204/249
VD0
0
2