psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 65

• Manufacturer Part Number: psb21391
• Description: Siemens Codec With Upn Transceiver
• Manufacturer: Infineon Technologies Corporation

If several consecutive codes are detected, only the first and the last code is obtained at
the first and second register read, respectively.
For CIR1 no FIFO is available. The actual code of the received C/I channel 1 is always
stored in CIR1.
Figure 31
CIC Interrupt Structure
2.2.6
After reset the codec, the TIC-bus access, the serial data strobes (pin SDS1 and SDS2)
and the controller data access are disabled.
The IOM handler is enabled except the generation of the bit clock (pin BCL).
The monitor handler is enabled for channel MON0 and the transceiver for the channels
B1, B2, C/I0 and D.
The HDLC controller is connected to the D channels.
The pins DD and DU are in open drain state.
The synchronous transfer interrupts and synchronous transfer overflow interrupts are
masked.
Data Sheet
Settings after Reset (see also chapter 7.2)
TRAN
MASK
HDLC
WOV
MOS
CIC
TIN
INT
ST
TRAN
HDLC
ISTA
WOV
MOS
CIC
TIN
ST
55
CI1E
CIX1
CIC0
CIC1
CIR0
PSB 21391
PSB 21393
Interfaces
2001-03-07