PEB2447 SIEMENS [Siemens Semiconductor Group], PEB2447 Datasheet - Page 40

• Manufacturer Part Number: PEB2447
• Description: Memory Time Switch Extended Large MTSXL
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Semiconductor Group
4.12
Access in demultiplexed P-interface mode:
Read/write, address:
Reset value:
MWD11..8
If the values MWD10..0 / MRD10..0 are used as control memory entries, each possible
value corresponds to a single input time slot. MWD11 / MRD11 defines, whether the
input time slot is switched actively to the PCM output or is switched to high impedance.
Table 13
Input Time Slot Mapping / Programming of Output Tristate Control
Mode
0
1, 3
TSC
TSC
TSC
D11 D10 D9
D11 D10 D9
Memory Write Data Register High (MWDH)
Bit 7
0
Time Slot Number 6..1
Memory Write Data values (bits 11 to 8); in a write memory access
the values to transfer are written to these registers. Both registers
must not be written during an active access. An active access cycle,
started by a write access to MACH, is indicated by register bit
STAR:MAC.
Tristate Control Value
0: active
1: high impedance;
TSC controls whether the output time slot (corresponding to the
address of the control memory location) will drive the PCM values or
will be tristate.
Time Slot Number
0
D8
D8
MRD11..0 / MWD11..0
D7
D7
0
D6
D6
08
XX
H
H
D5
D5
0
40
PN3 TS0
MWD11 MWD10 MWD9 MWD8
D4
D4
Port Number
D3
D3
Detailed Register Description
D2
D2
PN2..0
D1
D1
D0
D0
Valid for
Inputs/(Ports)
IN (31:0) =
Port (31:0)
IN (23:16) =
Port (15:8)
IN (7:0) =
Port (7:0)
Bit 0
PEB 2447
03.97