SAA5290A Philips Semiconductors, SAA5290A Datasheet - Page 20

• Manufacturer Part Number: SAA5290A
• Description: Economy teletext and TV microcontrollers
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1997 Jul 07
Serial Interface Data Register (S1DAT); note 1
DAT7 to DAT0
Serial Interface Status Register (S1STA) - READ only; note 1
STAT4 to STAT0
Serial Interface Data Register (S1BIT) - READ; note 2
SDI
Serial Interface Data Register (S1BIT) - WRITE; note 2
SDO
Serial Interface Interrupt Register (S1INT); note 2
SI
Serial Interface Control Register (S1SCS) - READ; note 2
SDI
SCI
CLH
BB
RBF
WBF
STR
ENS
Serial Interface Control Register (S1SCS) - WRITE; note 2
SDO
SCO
CLH
STR
ENS
Software ADC Control Register (SAD)
VHI
CH1 and CH0
ST
SAD7 to SAD4
Economy teletext and TV microcontrollers
REGISTER
I
I
I
I
I
serial data input at SDA
serial clock input at SCL
clock LOW-to-HIGH transition flag
bus busy flag
read bit finished flag
write bit finished flag
clock stretching enable (logic 1)
enable serial I/O (logic 1)
serial data output at SDA
serial clock output at SCL
clock LOW-to-HIGH transition flag
clock stretching enable (logic 1)
enable serial I/O (logic 1)
comparator output indicating that analog input voltage greater than DAC voltage (logic 1)
ADC input channel selection bits; see Table 11
initiate voltage comparison (logic 1); this bit is automatically reset to logic 0
4 MSB’s of DAC input value
2
2
2
2
2
C-bus data
C-bus interface status
C-bus data bit input
C-bus data bit output
C-bus interrupt flag
20
FUNCTION
SAA5x9x family
Preliminary specification