參數(shù)資料
型號: W78CE354
廠商: WINBOND ELECTRONICS CORP
英文描述: MONITOR MICROCONTROLLER
中文描述: 顯示器單片機(jī)
文件頁數(shù): 37/44頁
文件大小: 426K
代理商: W78CE354
W78C354
Publication Release Date: October 1996
- 37 -
Revision A1
16 MHz
18.432 MHz
20 MHz
No Hsync response time
128
μ
S
111
μ
S
102
μ
S
M-7. Self-test Pattern Output
When the dummy frequency generator is enabled, if bit P23SF of SFR CONTREG4 is set, the STP
output will provide a checkerboard pattern for burn-in or self-diagnostic purposes. The bit INVSTP of
CONTREG4 can invert the checkerboard pattern to avoid phosphor damage during factory burn-in.
CONDITION Of P23SF
PORT 2.3 I/O PIN FUNCTION
P23SF = 0
General I/O pin
P23SF = 1 & P2.3 = 0
STP output
0
1
P23SF
P2.3/STP
P2.3 output latch
STP output
Figure 18. Alternate function of P2.3
INVSTP = 0
INVSTP = 1
Figure 19. Checkerboard pattern
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