PCA9620H NXP [NXP Semiconductors], PCA9620H Datasheet - Page 10

• Manufacturer Part Number: PCA9620H
• Description: Universal LCD driver for low multiplex rates
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCA9620
Product data sheet
7.1.12.1 Command: input-bank-select
7.1.12.2 Command: output-bank-select
7.1.12 Bank select commands
For multiplex drive modes 1:4, 1:2 and static drive mode, it is possible to write data to one
area of the RAM whilst displaying from another. These areas are named as RAM banks.
Input and output banks can be set independently from one another with the
input-bank-select and the output-bank-select command. For further information see
Section 7.9.2 on page
Table 18.
[1]
[2]
Table 19.
[1]
[2]
Bit
7 to 3
2 to 0
Bit
7 to 3
2 to 0
Not applicable for multiplex drive mode 1:6 and 1:8.
Default value.
Not applicable for multiplex drive mode 1:6 and 1:8.
Default value.
Symbol
-
IB[2:0]
Symbol
-
OB[2:0]
Input-bank-select - input bank select command bit description
Output-bank-select - output bank select command bit description
All information provided in this document is subject to legal disclaimers.
Value
00001
000
001
010
011
100
101
110
111
Value
00010
000
001
010
011
100
101
110
111
[2]
[2]
Rev. 1 — 9 December 2010
46.
Description
fixed value
selects RAM bank to write to
static drive mode
bank 0: RAM-row 0
bank 1: RAM-row 1
bank 2: RAM-row 2
bank 3: RAM-row 3
bank 4: RAM-row 4
bank 5: RAM-row 5
bank 6: RAM-row 6
bank 7: RAM-row 7
Description
fixed value
selects RAM bank to read from to the LCD
static drive mode
bank 0: RAM-row 0
bank 1: RAM-row 1
bank 2: RAM-row 2
bank 3: RAM-row 3
bank 4: RAM-row 4
bank 5: RAM-row 5
bank 6: RAM-row 6
bank 7: RAM-row 7
Universal LCD driver for low multiplex rates
1:2 drive mode
bank 0: RAM-rows 0
and 1
bank 2: RAM-rows 2
and 3
bank 4: RAM-rows 4
and 5
bank 6: RAM-rows 6
and 7
1:2 drive mode
bank 0: RAM-rows 0
and 1
bank 2: RAM-rows 2
and 3
bank 4: RAM-rows 4
and 5
bank 6: RAM-rows 6
and 7
1:4 drive mode
bank 0: RAM-rows 0,
1, 2, and 3
bank 4: RAM-rows 4,
5, 6, and 7
1:4 drive mode
bank 0: RAM-rows 0,
1, 2, and 3
bank 4: RAM-rows 4,
5, 6, and 7
PCA9620
© NXP B.V. 2010. All rights reserved.
[1]
[1]
10 of 71