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參數(shù)資料
| 型號： | PLF8577C |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | LCD direct/duplex driver with I2C-bus interface |
| 中文描述： | 液晶直接/雙工司機帶I2C總線接口 |
| 文件頁數(shù)： | 9/28頁 |
| 文件大?。?/td> | 195K |
| 代理商： | PLF8577C |
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1998 Jul 30
9
Philips Semiconductors
Product specification
LCD direct/duplex driver with
I
2
C-bus interface
PCF8577C
6.10
Display memory mapping
The mapping between the eight segment registers and the segment outputs S1 to S32 is given in Tables 1 and 2.
Since only one register bit per segment is needed in the direct drive mode, the BANK bit allows swapping of display
information. If BANK is set to logic 0 even bytes (BANK A) are displayed; if BANK is set to logic 1 odd bytes (BANK B)
are displayed. BP1 is always used for the backplane output in the direct drive mode. In duplex mode even bytes
(BANK A) correspond to backplane 1 (BP1) and odd bytes (BANK B) correspond to backplane 2 (BP2).
Table 1
Segment byte-segment driver mapping in direct drive mode
Mapping example: bit 0 of register 7 controls the LCD segment S25 if BANK bit is a logic 1.
Table 2
Segment byte-segment driver mapping in duplex mode
Note
1.
Where X = don’t care.
Mapping example: bit 7 of register 5 controls the LCD segment S24/BP2.
MODE
BANK
V
2
V
1
V
0
SEGMENT/
BIT/
REGISTER
MSB
7
6
5
4
3
2
1
LSB
0
BACK-
PLANE
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
2
3
4
5
6
7
S8
S8
S16
S16
S24
S24
S32
S32
S7
S7
S15
S15
S23
S23
S31
S31
S6
S6
S14
S14
S22
S22
S30
S30
S5
S5
S13
S13
S21
S21
S29
S29
S4
S4
S12
S12
S20
S20
S28
S28
S3
S3
S11
S11
S19
S19
S27
S27
S2
S2
S10
S10
S18
S18
S26
S26
S1
S1
S9
S9
S17
S17
S25
S25
BP1
BP1
BP1
BP1
BP1
BP1
BP1
BP1
MODE
BANK
(1)
V
2
V
1
V
0
SEGMENT/
BIT/
REGISTER
MSB
7
6
5
4
3
2
1
LSB
0
BACK-
PLANE
1
1
1
1
1
1
1
1
X
X
X
X
X
X
X
X
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
2
3
4
5
6
7
S8
S8
S16
S16
S24
S24
S32
S32
S7
S7
S15
S15
S23
S23
S31
S31
S6
S6
S14
S14
S22
S22
S30
S30
S5
S5
S13
S13
S21
S21
S29
S29
S4
S4
S12
S12
S20
S20
S28
S28
S3
S3
S11
S11
S19
S19
S27
S27
S2
S2
S10
S10
S18
S18
S26
S26
S1
S1
S9
S9
S17
S17
S25
S25
BP1
BP2
BP1
BP2
BP1
BP2
BP1
BP2
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