參數(shù)資料
型號(hào)： GT-64111
廠商： Galileo Technology Services, LLC
英文描述： System Controller for RC4640, RM523X and VR4300 CPUs(用于RC4640, RM523X和 VR4300 CPUs的系統(tǒng)控制器)
中文描述： 系統(tǒng)控制器（用于RC4640，RM523X和VR4300處理器的系統(tǒng)控制器的RC4640，RM523X和VR4300處理器）
文件頁(yè)數(shù)： 9/130頁(yè)
文件大?。?/td> 881K
代理商： GT-64111
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GT-64111 System Controller for RC4640, RM523X and VR4300 CPUs
106
Revision 1.0
17.13 PCI Internal
Command, Offset: 0xc00
Time Out & ReTry, Offset: 0xc04
1. Regardless of the selected sync mode, PClk frequency must be smaller than Tclk frequency by at least 1MHz
Bits
Field name
Function
Initial Value
0
ByteSwap
When set to zero, the GT-64111 swaps the incoming
and outgoing PCI data.
If there is a PCI Address hit in an enabled SWAP
BAR, the data will be transferred OPPOSITE as it
would according to the setting of ByteSwap.
Set to the same value
sampled at reset into
bit[12] of the CPU/
Local Master Interface
Configuration register.
2:1
SyncMode1
Indicates the ratio between TClk and PClk as follows:
00 - When the PClk ranges from DC to 66MHz
(default mode; use following settings for higher perfor-
mance)
01 - When PClk frequency is HIGHER than or EQUAL
to half the TClk frequency (e.g. when TClk is 66MHz,
SyncMode can be set to 01 if the PCI frequency is
HIGHER than or equal to 33MHz).
1x - When the two clocks are synchronized (derived
from the same clock) and PClk frequency is HIGHER
than or EQUAL to half the TCLK frequency(e.g. TClk
= 66MHz, PClk = 33MHz)
0x0
31:3
Reserved
0x0
Bits
Field name
Function
Initial Value
7:0
Timeout0
Specifies in PCI clock units the number of clocks the
GT-64111, as a slave, holds the PCI bus before the
generation of retry termination. Used for the first data
transfer.
0x0f
15:8
Timeout1
Specifies in PCI clock units the number of clocks the
GT-64111, as a slave, holds the PCI bus before the
generation of disconnect termination. Used for data
transfers following the first data.The number of PCI
clock cycles between the last Trdy* rise and the Stop*
falling are n+1, where ‘n’ is the Timeout1 value.
0x07
23:16
RetryCtr
Specifies the number of retries of the GT-64111 Mas-
ter. The GT-64111 generates an interrupt when this
timer expires. A value of 0x00 means “retry forever”.
The number in RetryCtr does not include the first
access of the transaction.
0x00
31:24
Reserved
0x0
相關(guān)PDF資料
PDF描述
GT-96100A Advanced Communication Controller That Handles a Wide Range of Serial Communication Protocols,such as Ethernet,Fast Ethernet,and HDLC(通信協(xié)議的高級(jí)通信協(xié)議（以太網(wǎng)、快速以太網(wǎng)、HDLC）控制器)
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