SAB82538 Datasheet, PDF (209/253 Pages) Infineon Technologies AG – ICs for Communications

VN3– VN0… Version Number of Chip
0…Version 1
1… Version 2
SAB 82538
SAF 82538
BISYNC Mode
Baud Rate Generator Register (WRITE)
7
BGR
BR7
0
BR0 (offset: 34)
BR7– BR0… Baud Rate, bits 7-0
Together with bits BR9, BR8 of CCR2, it determines the division factor of
the baud rate generator.
In terms of the value N programmed in BR9 - BR0 (N = 0…1023), the
division factor k is:
k = (N + 1) × 2
Global Interrupt Status Register (READ)
Value after RESET: 00_H
7
0
GIS
PIA PIB PIC PID CII CN2 CN1 CN0 (038/078/0B8/0F8)
(138/178/1B8/1F8)
This status register points to pending
– channel assigned interrupts (ISR0_x, ISR1_x)
– universal port interrupts (PISA…D).
GIS is accessible via eight channel addresses (038_H to 1F8_H).
PIA– PID… Port Interrupt Indication
These status bits point to pending interrupts in corresponding Port Interrupt
Status registers PISA…PISD. They may be set independently from channel
assigned interrupts.
CII…
Channel Interrupt Indication
Set if at least one interrupt source of any channel is active.
Semiconductor Group
209