PCF2113AU Просмотр технического описания (PDF) - Philips Electronics
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PCF2113AU Datasheet PDF : 72 Pages
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Philips Semiconductors
LCD controllers/drivers
Product specification
PCF2113x
handbook, full pcahgaewraidctther codes
(DDRAM data)
76 5 43 2 10
higher
order
bits
lower
order
bits
00 0 00 0 00
00 0 00 0 01
00 0 00 0 10
CGRAM
address
6 5 43 2 10
higher
order
bits
lower
order
bits
00 0 00 0 0
001
010
011
100
101
110
111
00 0 10 0 0
001
010
011
100
101
110
111
0 0 1 00 0 0
001
00 0 01 1 11
00 0 01 1 11
00 0 01 1 11
00 0 01 1 11
1111100
1111101
1111110
1111111
character patterns
(CGRAM data)
4 3 21 0
higher
order
bits
lower
order
bits
0
0 00
0 00
0
0
00
00
0
0 00
0 0 00 0
0 00
0
0
0
00
00
00
00
00
00
0 0 00 0
character
pattern
example 1
cursor
position
character
pattern
example 2
character code
(CGRAM data)
4 3 21 0
1 1 11 0
1 0 00 1
1 0 00 1
1 1 11 0
1 0 10 0
1 0 01 0
1 0 00 1
0 0 00 0
1 0 00 1
0 1 01 0
1 1 11 1
0 0 10 0
1 1 11 1
0 0 10 0
0 0 10 0
0 0 00 0
MGE995
Character code bits 0 to 3 correspond to CGRAM address bits 3 to 6.
CGRAM address bits 0 to 2 designate the character pattern line position. The 8th line is the cursor position and display is performed by logical OR with
the cursor. Data in the 8th position will appear in the cursor position.
Character pattern column positions correspond to CGRAM data bits 0 to 4, as shown in this figure.
As shown in Figs 7 and 8, CGRAM character patterns are selected when character code bits 4 to 7 are all logic 0. CGRAM data = logic 1 corresponds
to selection for display.
Only bits 0 to 5 of the CGRAM address are set by the ‘set CGRAM address’ command. Bit 6 can be set using the ‘set DDRAM address’ command in
the valid address range or by using the auto-increment feature during CGRAM write. All bits 0 to 6 can be read using the ‘read busy flag’ and ‘address
counter’ command.
Fig.11 Relationship between CGRAM addresses, data and display patterns.
2001 Dec 19
17
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