saa5290 NXP Semiconductors, saa5290 Datasheet - Page 19

• Manufacturer Part Number: saa5290
• Description: Page Economy Teletext/tv Microcontroller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 11 SFR description
February 1995
IE - Interrupt Enable
EA
ES1
ET1
EX1
ET0
EX0
PCON - Power Control
GF0
GF1
PWM0 to PWM5 - 6-bit Pulse Width Modulator control registers
PWE
PV0 to PV5
SAD - Software ADC control
VHI
CH0 and CH1
ST
SAD0 to SAD3
S1BIT - Serial I
SDI
S1BIT - Serial I
SDO
S1INT - Serial I
SI
S1SCS - Serial I
SDI
SCI
CLH
BB
RBF
WBF
STR
ENS
One page Economy Teletext/TV
microcontroller
REGISTER
2
2
2
C-bus data (READ)
C-bus data (WRITE)
C-bus interrupt
2
C-bus control (READ)
Disable all interrupts (logic 0) or use individual enable bits (logic 1).
I
Enable Timer 1 overflow interrupt (logic 1).
Enable external interrupt 1 (logic 1).
Enable Timer 0 overflow interrupt (logic 1).
Enable external interrupt 0 (logic 1).
General purpose flag bit 0.
General purpose flag bit 1.
Activate this 6-bit PWM and take over port pin (logic 1).
Value to output by this 6-bit PWM.
Analog input voltage greater than DAC output voltage (logic 1).
See Table 12.
Initiate voltage comparison (logic 1). This is automatically reset.
4-bit DAC input value. The DAC output of this value is compared with analog input voltage.
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).
2
2
2
2
C-bus interrupt enable (logic 1).
C-bus data bit latched-in from SDA on the last rising edge of SCL.
C-bus data bit output.
C-bus interrupt flag.
19
FUNCTION
Preliminary specification
SAA5290