PT6880 Datasheet, PDF (18/42 Pages) Princeton Technology Corp – OLED Driver/Controller IC

OLED Driver/Controller IC
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URL: http://www.princeton.com.tw
Preliminary
PT6880
or
DDRAM
Notes: 1. x = Not Relevant
2. * = After the CGRAM/DDRAM Read or Write Instruction has been executed, the RAM
Address Counter is incremented or decremented by 1. After the Busy Flag is turned OFF,
the RAM Address is updated.
3. I/D = Increment / Decrement Bit
I/D = "1" : Increment
I/D = "0" : Decrement
4. S = Shift Entire Display Control Bit
5. BF = Busy Flag
BF = "1" : Internal Operating in Progress
BF ="0" : No Internal Operation is being executed, next instruction can be accepted.
6. R/L = Shift Right / Left
R/L = "1" : Shift to the Right
R/L = "0" : Shift to the Left
7. S/C = Display Shift / Cursor Move
S/C = "1" : Display Shift
S/C = "0" : Cursor Move
8. DDRAM = Display Data RAM
9. CGRAM = Character Generator RAM
10. ACG =CGRAM Address
11. ADD = Address Counter Address (corresponds to cursor address)
12. AC = Address Counter (used for DDRAM and CGRAM Addresses)
13. F = Character Pattern Mode
F = "1" : 5 x 10 dots
F = "0" : 5 x 8 dots
14. N = Number of Lines Displayed
N = "1" : 2 -Line Display
N = "0" : 1-Line Display
15. * = The time it takes to execute an instruction changes when the frequency changes. To
illustrate an example: When fcp of fosc = 250 kHz, then
the execution time = 37us x 270/250
= 40us
16. tADD is the time period starting when the Busy Flag is turned OFF up to the time the
Address Counter is updated. Please refer to the diagram below.
PT6880 pre 1.1
Page 18
Mar. 2002