28478G-18 Mindspeed Technologies, 28478G-18 Datasheet - Page 87

• 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 5-2.
5.1.2
Assume the system memory controller (or the host) allocates addresses for MUSYCC’s PCI functions as listed in
Table
Table 5-3.
The Base Address is written into MUSYCC by the host-initiated PCI configuration access write cycles. After
MUSYCC functions are memory-mapped to PCI space, the host allocates shared memory space for each
supported channel group descriptors. It requires each Group Base Pointer to start on a 2 kB boundary, as listed in
Table 5-4
28478-DSH-002-E
Transmit Head Pointers
Transmit Message Pointers
Receive Head Pointers
Receive Message Pointers
Transmit Time Slot Map
Transmit Sub Channel Map
Transmit Channel Configuration Table
Receive Time Slot Map
Receive Sub Channel Map
Receive Channel Configuration Table
Global Configuration Descriptor
Interrupt Queue Descriptor
Group Configuration Descriptor
Memory Protection Descriptor
Message Length Descriptor
Port Configuration Descriptor
MUSYCC - Function 0- Base Address Register
EBUS - Function 1- Base Address Register
5-3.
System Allocated MUSYCC Memory Ranges
and
Channel Group Memory Map
Table
Group Structure Memory Map
MUSYCC PCI Function Memory Allocation
Memory Access Illustration
5-8.
—
Preliminary Information / Mindspeed Proprietary and Confidential
Mindspeed Technologies
Byte Offset from Respective
Start Address
Group Base Pointer
0240 0000h
0340 0000h
Total Space Required
0060Ch
00000h
00080h
00100h
00180h
00200h
00280h
00380h
00400h
00480h
00580h
00600h
00604h
00610h
00614h
00618h
®
End Address
024F FFFFh
034F FFFFh
Memory Organization
Length (Bytes)
1564
128
128
128
128
128
256
128
128
256
128
4
8
4
4
4
4
Length
1 MB
1 MB
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