SAA4970T Datasheet, PDF (19/32 Pages) NXP Semiconductors – Economical video processing IC ECOBENDIC

Philips Semiconductors
Economical video processing IC
(ECOBENDIC)
Preliminary specification
SAA4970T
REGISTER BIT
NAME
Register 25H (update G_shifts1)
25H
0 fine shift CLMP
1
2 fine shift WE
3
4 fine shift IE
5
6 fine shift RE
7
Register 26H (SAMPLE AQUI and DISPL)
26H
0 to 7 SAMPLE AQUI and
DISPL
Register 27H (KADer EN’s SR)
27H
0 enable set 1
1 enable set 2
2 enable reset 1
3 enable reset 2
4 enable set 3
5 enable reset 3
6
7
Registers 28H, 29H, 2AH and 2BH (KADer)
28H
0 to 7 set 1
29H
0 to 7 reset 1
2AH
0 to 7 set 2
2BH
0 to 7 reset 2
Registers 2CH and 2DH (resets)
2CH
2DH
no data reset CB_intAb
no data reset PIP_intAc
Registers 2EH and 2FH (window)
2EH
0 to 8 set window
2FH
0 to 8 reset window
Registers 30H, 31H, 32H and 33H (RE)
30H
0 to 7 set 1
31H
0 to 7 reset 1
32H
0 to 7 set 2
33H
0 to 7 reset 2
FUNCTION
fine shift of CLMP, bit 0
fine shift of CLMP, bit 1
fine shift of WE, bit 0
fine shift of WE, bit 1
fine shift of IE, bit 0
fine shift of IE, bit 1
fine shift of RE, bit 0
fine shift of RE, bit 1
fills current value of CNT_A, CNT_B, CNT_D and CNT_F into
MUXA, MUXB, MUXE and MUXD (9th bit (MSB, bit 8) of CNT_B
into bit 4 of MUXC, 9th bit (MSB, bit 8) of CNT_D into bit 6 of
MUXC) when address 26H is sent
enables first rising edge of KAD signal
enables first falling edge of KAD signal
enables second rising edge of KAD signal
enables second falling edge of KAD signal
enables third rising edge of KAD signal
enables third falling edge of KAD signal
not used
not used
sets first rising edge of KAD signal when register data = CNT_F
sets first falling edge of KAD signal when register data = CNT_F
sets second rising edge of KAD signal when register data = CNT_F
sets second falling edge of KAD signal when register data = CNT_F
resets interrupt CB_intAb when address 2C is sent
resets interrupt PIP_intAc when address 2D is sent
sets rising edge of WINDOW signal when register data = CNT_B
sets falling edge of WINDOW signal when register data = CNT_B
sets first rising edge of RE signal when register data = CNT_F
sets first falling edge of RE signal when register data = CNT_F
sets second rising edge of RE signal when register data = CNT_F
sets second falling edge of RE signal when register data = CNT_F
1996 Oct 25
19