LSISASX12 LSI, LSISASX12 Datasheet - Page 133

• Manufacturer Part Number: LSISASX12
• Manufacturer: LSI

Specifications of LSISASX12

• Lead Free Status / Rohs Status: Not Compliant

Register: 0xC000
Read/Write
31
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
This SIO module participates in the generation of an SIO output data
stream as an originator.
Configuration Manager Registers
Copyright © 2004, 2005 by LSI Logic Corporation. All rights reserved.
24 23
When bit 0 of this register is set, the value in this field is
the mux control code that is transmitted on the SioEnd
line after setting the Transmit Mux Control bit. Encodings
for the value in this register are receiver defined except
for bit 28 (MX0), which determines whether the cycle
transmits and receives device data or general purpose
data. Bit 28 (MX0) is transmitted first.
Transmit Mux Control
When bit 0 of this register is set, setting this bit causes
the SIO to transmit the value in Mux Control Code in the
next available transmit cycle. The SIO transmits the Mux
Control Code one time only. When bit 0 of this is register
cleared, the SIO ignores writes to this field.
Setting this bit may produce unexpected results when the
SIO Mode bit is cleared and SIO Device Count is set to
0b0001.
SIO Device Count
This field provides the number of devices that require
LED output bits and input bits. The number of bits to be
output on the SioDout line and the number of bits to be
input on the SioDin line is 3 times the SIO Device Count
(3
provide for 3 to 36 output bits and 3 to 36 input bits. Bit
0 is always transmitted first.
To send out the minimum number of bits and to eliminate
the requirement that receivers skip over unused output
bits, attach devices to consecutive phys, starting with
Phy 0.
SIO Configuration
(SIO Device Count)). Valid values are 1 to 12, which
16 15
8 7
0
0 0 0 0
[
[26:23]
0
4-55
27
0
0