cx29503 Mindspeed Technologies, cx29503 Datasheet - Page 132

• Manufacturer Part Number: cx29503
• Description: Cx29503 Broadband Access Multiplexer Data Sheet
• Manufacturer: Mindspeed Technologies

Register Description
0x0000—Device Identification Register (DEV_ID)
DeviceID
DeviceRev
Reset State
0x0001—Top Level Control Register (TOP_CTL_REG)
SftwrReset
Reset State
0x0002—Top Level Interrupt Status Register (TOP_IRQ_STAT)
OneSec
RXMAP
TXMAP
DS1E1
M13E13
DS3/E3
TSBus
CSP
Reset State
8-2
CSP
—
7
7
7
A value of 0x3 indicates the CX29503
A value of 0x0 indicates part numbers 11 and 12; a value of 0x1 indicates part number 13.
00010011 or 00000011
When set to 1, performs a hardware-level reset of the Mapper/MUX block.
This bit clears after reset. The reset process starts in less than 4 clock cycles after this bit is set.
During the reset process, the pins are held as shown in Table 1-8. The reset process completes
in less than 84 clock cycles.
00000000
Figure 1-3
The only status bit that is latched by the User Interface Program (UIP) block is the One-Second
Status bit; the other status bits are latched by other blocks (TSB, SONET/SDH, etc.). The
processor must read the Top-Level Status register to clear the One-Second Status bit. The One-
Second Status bit is latched whether the corresponding enable bit is set or not. For other status
bits, the processor must read the appropriate Interrupt Status register for the corresponding
block to clear the Interrupt Status bit in this register.
One-Second Status bit. This bit is a clear-on-read type.
Interrupt status from the Receive STS/SDH Mapper block
Interrupt status from the Transmit STS/SDH Mapper block
Interrupt status from the DS1/E1 Framer block
Interrupt status from the M13/E13 Framer block
Interrupt status from the DS3/E3 Framer block
Interrupt status from the TSB Interface block
Interrupt status from the Command and Status Processor block
00000000
TSBus
—
6
6
6
DeviceRev
shows the interrupt structure and processing at the top level.
DS3E3
—
5
5
5
Mindspeed Technologies™
M13E3
Preliminary Information
—
4
4
4
DS1E1
—
3
3
3
TXMAP
—
2
2
2
DeviceID
SftwrRst
RXMAP
1
1
1
CX29503 Data Sheet
29503-DSH-002-B
OneSec
—
0
0
0