28478G-18 Mindspeed Technologies, 28478G-18 Datasheet - Page 111

• 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 5-24.
Table 5-25.
28478-DSH-002-E
Field
Field
28:14
28:20
13:0
Bit
Bit
31
30
29
31
30
29
BLEN[13:0]
Transmit Buffer Status Descriptor
Receive Buffer Status Descriptor (1 of 2)
OWNER
OWNER
Name
Name
RSVD
RSVD
RSVD
RSVD
EOM
EOM
Preliminary Information / Mindspeed Proprietary and Confidential
Value
Value
—
0
1
0
0
1
0
0
1
0
0
1
0
Host Owns Buffer. MUSYCC has relinquished control of buffer back to host. MUSYCC is done
processing buffer.
MUSYCC Owns Buffer. Until MUSYCC relinquishes control, the data in this descriptor is being used
by MUSYCC.
Reserved.
End of Message Indicator. Copied from Transmit Buffer Descriptor.
End of Message Indicator. Copied from Transmit Buffer Descriptor.
Reserved.
Buffer Length. The number of octets from data buffer transmitted. In general this would equal the
allocated buffer size.
MUSYCC Owns Buffer. Until MUSYCC relinquishes control, the data in this descriptor is being used
by MUSYCC.
Host Owns Buffer. MUSYCC has relinquished control of buffer back to host. MUSYCC is done
processing buffer.
Reserved.
End of Message Indicator. The last octet for this message is not in this buffer.
End of Message indicator. The last octet for this data message is in this buffer either because a valid
closing flag (7Eh) was detected or the receiver terminated due to an error condition.
Reserved.
Mindspeed Technologies
®
Description
Description
Memory Organization
98