Epson LQ 1050 Technical Manual - Page 197

REV.-A, Table A-8. GA E05A15HA Control Functions, Address, Control Functions

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Table A-8. GA E05A15HA Control Functions Address OOH OIH 02H 03H 04H READAIVRITE Control Functions READ None WRITE Data is set to the mode register. Bit 7: - Bit 6: Bank 1 Bit 5: Bank O Bit 4: Carriage motor rotation 1 . . . Counterclockwise (L ~ R) O . . Clockwise (R + L) Bit 3: Carriage motor phase switching 1 . . . Direct control O . . . Automatic control Bit 2: Paper feed motor rotation 1 . . . Clockwise (Reverse) O . . . Counterclockwise (Forward) Bit 1: Paper feed motor phase switching 1 . . . Direct control O . . . Automatic control Bit O: Automatic half-dot protection 1 . . . Enable 2 . . . Disable READ Read data from PO-P4. Bit 7-5: Not used Bit 4: P4 Bit 3: P3 Bit 2: P2 Bit 1: P1 Bit O: PO WRITE Write data to P5. Write P5 data to the mode register bit 5. READ Clear 1st printhead data buffer. WRITE Clear printhead data 9th bit + Head Data" bit 7 READ Clear 2nd printhead data buffer. WRITE Set printhead data. 1st-8th bit -+ Head Data bits 7-O READ Read paper feed motor phases. Bit 7-4: Not used Bit 3: A-phase Bit 2: C-phase Bit 1: B-phase Bit O: D-phase WRITE Set paper feed motor phases Bit 7-7: Not used Bit 3: A-phase Bit 2: C-phase Bit 1: B-phase Bit O: D-phase A-1 1 REV.-A

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REV.-A
Table A-8. GA E05A15HA Control Functions
Address
READAIVRITE
Control Functions
OOH
READ
None
WRITE
Data is set to the mode register.
Bit 7: –
Bit 6: Bank 1
Bit 5: Bank O
Bit 4: Carriage motor rotation
1
. . .
Counterclockwise (L
~
R)
O . . Clockwise (R + L)
Bit 3: Carriage motor phase switching
1
. . .
Direct control
O . . . Automatic control
Bit 2: Paper feed motor rotation
1
. . .
Clockwise (Reverse)
O . . . Counterclockwise (Forward)
Bit 1: Paper feed motor phase switching
1 . . . Direct control
O . . . Automatic control
Bit O: Automatic half-dot protection
1 . . . Enable
2 . . . Disable
OIH
READ
Read data from PO-P4.
Bit 7-5: Not used
Bit 4: P4
Bit 3: P3
Bit 2: P2
Bit 1:
P1
Bit O: PO
WRITE
Write data to P5.
Write P5 data to the mode register bit 5.
02H
READ
Clear 1st
printhead
data buffer.
WRITE
Clear
printhead
data
9th bit
+
Head Data” bit 7
03H
READ
Clear 2nd
printhead
data buffer.
WRITE
Set
printhead
data.
1st-8th bit
-+
Head Data bits 7-O
04H
READ
Read paper feed motor phases.
Bit 7-4: Not used
Bit 3:
A-phase
Bit 2:
C-phase
Bit 1:
B-phase
Bit O:
D-phase
WRITE
Set paper feed motor phases
Bit 7-7: Not used
Bit
3:
A-phase
Bit 2:
C-phase
Bit 1:
B-phase
Bit O:
D-phase
A-1 1