28478G-18 Mindspeed Technologies, 28478G-18 Datasheet - Page 101

• Manufacturer Part Number: 28478G-18
• Description: Multichannel Synchronous Communications Controller 208-Pin BGA
• Manufacturer: Mindspeed Technologies

Specifications of 28478G-18

• Package: 208BGA
• Maximum Data Rate: 32768 Kbps
• Transmission Media Type: Wire
• Power Supply Type: Analog
• Typical Supply Current: 250 mA
• Typical Operating Supply Voltage: 3.3 V
• Minimum Operating Supply Voltage: 3 V
• Maximum Operating Supply Voltage: 3.6 V

Table 5-14
time slot descriptor.
Table 5-14.
Accessing the Time Slot Map within MUSYCC requires that a serial line clock be present at the serial interface. If a
clock is not present, writes are ignored, and reads return all 1s.
The host can read and write the Receive Time Slot Map information from within MUSYCC; however, the host can
only write Transmit Time Slot Map into MUSYCC. The transmit maps are stored in write-only registers. Reading
transmit maps results in all 1s being returned.
Table 5-15.
28478-DSH-002-E
Field
31:29
28:24
23:21
20:16
Bit
lists the time slot descriptor location and byte offset.
Byte Offset
TSEN3[2:0]
TSEN2[2:0]
CH3[4:0]
CH2[4:0]
Transmit or Receive Time Slot Map
Time Slot Descriptor (1 of 2)
00h
1Ch
3Ch
5Ch
7Ch
Name
...
...
...
...
Preliminary Information / Mindspeed Proprietary and Confidential
Value
0–31
0–31
1–3
1–3
0
4
5
6
7
0
4
5
6
7
Time Slot Disabled. Default.
Reserved.
Time Slot Enabled. 64 kbps mode.
Time Slot Enabled. 56 kbps mode.
Time Slot Enabled. Subchannel mode w/o first bit.
Time Slot Enabled. Subchannel mode w/ first bit.
Channel number assigned to this time slot.
Time Slot Disabled. Default.
Reserved.
Time Slot Enabled. 64 kbps mode.
Time Slot Enabled. 56 kbps mode.
Time Slot Enabled. Subchannel mode w/o first bit.
Time Slot Enabled. Subchannel mode w/ first bit.
Channel number assigned to this time slot.
Mindspeed Technologies
TS127
MSB
TS03
TS31
TS63
TS95
...
...
...
...
Time Slot Descriptor Relative Location
TS126
TS02
TS30
TS62
TS94
...
...
...
...
Table 5-15
®
Description
lists the value and description of each
TS125
TS01
TS29
TS61
TS93
...
...
...
...
Memory Organization
TS124
TS00
TS28
TS60
TS92
LSB
...
...
...
...
88