cx28500 Mindspeed Technologies, cx28500 Datasheet - Page 74

• Manufacturer Part Number: cx28500
• Description: Cx28500 Multichannel Synchronous Communications Controller
• Manufacturer: Mindspeed Technologies

Figure 4-5.
4.1.10.1
Figure 4-6
The four devices are multiplexing the address in shared memory. The framer’s configuration software has to read
the whole block of framers configuration before it starts demultiplexing data per device.
Figure 4-6.
28500-DSH-002-C
illustrates the EBUS connections of four 8-bit peripheral devices.
EBUS Connection, Multiplexed Address/Data, 8 Framers, No Local MPU
EBUS Connection, Multiplexed Address/Data, 4 Framers, No Local MPU
Multiplexing Address
EAD[8:0]
AS*, R/WR*, DS*,
ECLK Control Lines
EAD[10:9]
EBE[3:0]*
CX28500
EBUS
Select
Chip
EAD[31:0]
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Mindspeed Technologies
CS0*,CS4*
BE2
BE1
BE0
CS*
Data Addr
LATCH
EAD[25:31]
EAD[16:24]
ADDR
EAD[8:15]
Bt8370
EAD[0:7]
CS1*,CS5*
AD[0:X]
CS*
Data Addr
®
Bt8370
CS2*,CS6*
A0 - A9
A0 - A9
A0 - A9
A0 - A9
Data Addr
CS*
Bt8370
CS3*,CS7*
Expansion Bus (EBUS)
Bt8370
Bt8370
Bt8370
Bt8370
Data Addr
CS*
Bt8370
500052_052
500052_053
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