参数资料
型号: P83C766BDP
厂商: NXP SEMICONDUCTORS
元件分类: 微控制器/微处理器
英文描述: Microcontrollers for PAL/SECAM TV with OSD and VST
中文描述: 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PDIP42
封装: 0.600 INCH, PLASTIC, SDIP-42
文件页数: 42/92页
文件大小: 382K
代理商: P83C766BDP
1999 Mar 10
42
Philips Semiconductors
Product specification
Microcontrollers for PAL/SECAM TV
with OSD and VST
P8xCx66 family
Fig.23 Loading VSTL and VSTH into VSTREG.
handbook, full pagewidth
MGL288
Case 1
correct
Tsub
Tsub
Tsub
write
TDACL
write
TDACH
status bus
VSTH old
VSTL old
VSTH new
VSTL new
new TDACL and TDACH is loaded
into TDAC
Case 2
correct
write
TDACL
write
TDACH
status bus
VSTH old
VSTL old
VSTH old
VSTL old
VSTH new
VSTL new
new TDACL and TDACH is loaded
into TDAC
Case 3
wrong
write
TDACH
old TDACL and TDACH is loaded
into TDAC
status bus
VSTH old
VSTL old
VSTH new
VSTL old
VSTH new
VSTL old
write
TDACL
Fig.24 Coarse adjustment output (OUT1).
handbook, full pagewidth
MGL287
Tstd (= 128Tsub)
VSTH
×
t0
VSTH
×
t0
VSTH
×
t0
Tsub1
Tsubm
Tsub128
0
(128-VSTH)
×
t0
128
×
t0
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