參數(shù)資料
型號: UC1682
廠商: Electronic Theatre Controls, Inc.
英文描述: HIGH-VOLTAGE MIXED-SIGNAL IC
中文描述: 高電壓混合信號集成電路
文件頁數(shù): 38/70頁
文件大?。?/td> 1161K
代理商: UC1682
U
LTRA
C
HIP
High-Voltage Mixed-Signal IC
1999 ~
2003
36
ES Specifications
L
LSB
D
L
D
L+K
C
MSB
C
LSB
Dummy
D
C
D
C+1
M
MSB
M
LSB
L
L+K
L+K+1
C
C+1
C+2
C+3
M
D
L
D
L+K
Dummy
D
C
D
C+1
D
C+2
External
CD
___
WR
__
RD
D[7:0]
Internal
Write
Read
Data
Latch
Column
Address
F
IGURE
6:
8 bit Parallel Interface & Related Internal Signals
S
ERIAL
I
NTERFACE
UC1682 supports three serial modes, one 4-wire
SPI mode (S8), one compact 3/4-wire mode (S8uc)
and one 3-wire SPI mode (S9). Bus interface mode
is determined by the wiring of the BM[1:0] and
D[7:6]. See table in last page for more detail.
S8 (4-
WIRE
) I
NTERFACE
Only write operations are supported in 4-wire serial
mode. Pin CS[1:0] are used for chip select and bus
cycle reset. Pin CD is used to determine the
content of the data been transferred. During each
write cycle, 8 bits of data, MSB first, are latched on
eight rising SCK edges into an 8-bit data holder.
If CD=0, the data byte will be decoded as
command. If CD=1, this 8-bit will be treated as data
and transferred to proper address in the Display
Data RAM on the rising edge of the last SCK pulse.
Pin CD is examined when SCK is pulled low for the
LSB (D0) of each token.
CS0
SDA
SCK
CD
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
F
IGURE
7.a:
4-wire Serial Interface (S8)
CS0
SDA
SCK
CD
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
F
IGURE
7.b:
3/4-wire Serial Interface (S8uc)
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