28478G-18 Mindspeed Technologies, 28478G-18 Datasheet - Page 177

• 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

Figure 7-7.
7.2.3
The EBUS timing is derived from the PCI clock (PCLK) input to MUSYCC. The ECLK output is either one-half of
the PCI clock (M66EN = 1) or the same as the PCI clock (M66EN = 0); the ECLK and PCLK relationship is shown
in
The EBUS I/O timing characteristics are identical to the PCI I/O timing characteristics.
The EBUS clock waveform characteristics are identical to the PCI clock waveform characteristics (refer to
12
Figure 7-8.
28478-DSH-002-E
Figures 7-8
through
8478_030
DEVSEL*
CBE[3:0]
7-14
FRAME*
AD[31:0]
TRDY*
IRDY*
PCLK
and 7-9.
PCI Write Single Operation
ECLK to PCLK Relationship (M66EN = 0)
PAR
and
Expansion Bus (EBUS) Timing and Switching Characteristic
Figures 7-10
8478_031
Preliminary Information / Mindspeed Proprietary and Confidential
PCLK
ECLK
through 7-12).
Command
Address
Mindspeed Technologies
1
2
Data 1
BE
V
3
test
T
de
4
V
test
Electrical and Mechanical Specifications
®
V
V
V
th
tl
tl
Tables 7-
164