28478G-18 Mindspeed Technologies, 28478G-18 Datasheet - Page 118

• 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 5-31.
28478-DSH-002-E
Field
19:16
Bit
ERROR[3:0]
Name
Field
Interrupt Descriptor (3 of 5)
Value
5-7
0
1
2
3
4
8
Preliminary Information / Mindspeed Proprietary and Confidential
Interrupt
BUFF
COFA
Name
OOF
NONE
PROT
ONR
(2)
(2)
(2)
Mindspeed Technologies
V
V
V
V
V
V
—
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V Buffer Error. Data is lost. MUSYCC has no place to read or write data
V Change of Frame Alignment. Generated when serial port is configured
V Owner-Bit Error. Generated when next message pointer/descriptor is
V Memory Protection Violation. Generated when memory protection is
V Out of Frame. Generated when serial port is configured in channelized
No error to report in this interrupt.
internally. If from transmitter, then internal buffer underflow. If from
receiver, internal buffer overflow.
in channelized mode and transmitter or receiver synchronization
signal assertion is detected during a bit-time, and the synchronization
signal is misaligned with internal flywheel mechanism in serial
interface. This condition affects all channels in the group.
not available to MUSYCC when expected. This error is similar to BUFF
error except that MUSYCC has no place to read or write data in shared
memory, for example, when MUSYCC can not write out a Buffer Status
Descriptor.
enabled, and MUSYCC attempts a PCI master mode access to an
address outside the memory region specified in a group’s Memory
Protection Descriptor. The memory access is inhibited.
Reserved.
mode, and receiver-out-of-frame (ROOF) input signal assertion is
detected.
TCOFA - immediately deactivates all tx channels in the affected
RCOFA - every channel currently receiving message will have
group (that includes multiple groups if non-zero
PORTMAP). Therefore, after a TCOFA, MUSYCC does not
update any tx message descriptor and does not generate
any EOB/EOM interrupts unless the message is already
sent or buffer already processed. MUSYCC stops polling
any active tx channel’s descriptor and the transmit serial
data (TDAT) output should immediately go to the
deactivated state (either all ones or three-state) ascending
to TRITX setting.
its message terminated with COFA error. Every active
channel will be left activated.
®
Description
Memory Organization
105