28478G-18 Mindspeed Technologies, 28478G-18 Datasheet - Page 95

• 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 5-9.
28478-DSH-002-E
FOOTNOTE:
(1)
Field
12:8
Bit
7:6
4:0
Time Slot Map, Subchannel Map, and Channel Configuration Description Table are read into MUSYCC only if a serial clock is provided to
the Serial Interface being configured.
5
SREQ[4:0]
Service Request Descriptor (2 of 2)
CH[4:0]
Name
RSVD
DIR
Preliminary Information / Mindspeed Proprietary and Confidential
Value
12–15
22–23
27–31
6–7
10
11
16
17
18
19
20
21
24
25
26
—
8
9
0
0
1
Reserved.
Channel Activation. For a specified channel and direction, initialize the channel, read the head pointer,
jump to the first message descriptor, and start processing the data buffer.
This request starts processing a new message list. The effect of this request is destructive to the
current message being processed if the channel was already activated and processing a message.
This request is useful in aborting the current message and starting a new message list.
Channel Deactivation. For a specified channel and direction, suspend channel activity.
Jump. For the receiver, this request is the same as the Channel Activation request. For the transmitter,
this request is useful for switching to a new message list after the current message is completely
transferred.
Channel Configure. For a specified channel and direction, read the Channel Configuration Descriptor.
Reserved.
Read Global Configuration Descriptor.
Read Interrupt Queue Descriptor. The Interrupt Status Descriptor is reset to point to the first dword in
the queue, and all indicator bits are reset.
Read Group Configuration Descriptor.
Read Memory Protection Descriptor.
Read Message Length Descriptor.
Read Port Configuration Descriptor.
Reserved.
Read Time Slot Map. For this group and specified direction, read the Time Slot Map
Read Subchannel Map. For this group and specified direction, read the Subchannel Map
Read Channel Configuration Table. For this group and specified direction, read the Channel
Configuration Table
Reserved.
Reserved.
Receive direction.
Transmit direction.
Channel number.
Mindspeed Technologies
(1)
.
®
Description
Memory Organization
(1)
.
(1)
.
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