peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 289

• Manufacturer Part Number: peb20560
• Description: Dsp Oriented Pbx Controller Doc
• Manufacturer: Infineon Technologies Corporation

Semiconductor Group
5.1.1.4.22 Synchronous Transfer Control Register (STCR)
Access: read/write
Reset value: 00xxxxxx
The STCR-register bits are used to enable or disable the synchronous transfer utility and
to determine the subtime slot bandwidth and position if a PCM-interface time-slot is
involved.
TAE, TBE Transfer Channel A (B) Enable.
CTA2…0
CTB2…0
bit 7
TBE
1…enables the µP transfer of the corresponding channel.
0…disables the µP transfer of the corresponding channel.
Channel Type A (B); these bits determine the bandwidth of the channel and
the position of the relevant bits in the time-slot according to the table below.
Note that if a CFI time-slot is selected as receive or transmit time-slot of the
synchronous transfer, the 64-kbit/s bandwidth must be selected
(CT#2…CT#0 = 001).
Table 5-43
CT#2
0
0
0
0
1
1
1
1
TAE
B
CT#1
0
0
1
1
0
0
1
1
CTB2
CT#0
0
1
0
1
0
1
0
1
CTB1
5-46
CTB0
Bandwidth
not allowed
64 kbit/s
32 kbit/s
32 kbit/s
16 kbit/s
16 kbit/s
16 kbit/s
16 kbit/s
CTA2
Description of Registers
Transferred Bits
–
bits 7…0
bits 3…0
bits 7…4
bits 1…0
bits 3…2
bits 5…6
CTA1
PEB 20560
bit 0
CTA0
2003-08