参数资料
型号: 5962R0722402VYC
厂商: ATMEL CORP
元件分类: 微控制器/微处理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PQFP256
封装: QFP-256
文件页数: 16/155页
文件大小: 4139K
代理商: 5962R0722402VYC
112
7703D–AERO–12/09
AT697F PRELIMINARY INFORMATION
PR
ELI
MINA
R
Y
IN
FOR
M
AT
IO
N
0
com1
Enable target IO command response
Controls a device's response to I/O Space accesses. A value of 0 disables the device response. A value of 1
allows the device to respond to I/O Space accesses. State after RST* is 0.
Table 90. PCI Device Identification 2 - PCIID2
Address = 0x80000108
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
class code [23:0]
revision id [7:0]
r
0x0B4000
0x10
Bit Number
Mnemonic
Description
31..8
class code [23:0]
The Class Code register is read-only and is used to identify the generic function of the device and, in some
cases, a specific register-level programming interface. The register is broken into three byte-size fields. The
upper byte (at offset 0Bh) is a base class code which broadly classifies the type of function the device performs.
The middle byte (at offset 0Ah) is a sub-class code which identifies more specifically the function of the device.
The lower byte (at offset 09h) identifies a specific register-level programming interface (if any) so that device
independent software can interact with the device.
7..0
revision id [7:0]
This register specifies a device specific revision identifier. The value is chosen by the vendor. Zero is an
acceptable value. This field should be viewed as a vendor defined extension to the Device ID.
Table 91. Bist, Header type, Latency, Cache line size Register - PCIBHLC
Address = 0x8000010C
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
bist[7:0]
header type [7:0]
latency timer [7:0]
cache line size [7:0]
r/w
0x00
Bit Number
Mnemonic
Description
31..24
bist[7:0]
bist7 : Return 1 if device supports BIST. Return 0 if the device is not BIST capable.
bist6 : Write a 1 to invoke BIST. Device resets the bit when BIST is complete. Software should fail the device if
BIST is not complete after 2 seconds.
bist[3..0] : A value of 0 means the device has passed its test. Non-zero values mean the device failed. Device-
specific failure codes can be encoded in the non-zero value.
23..16
header type [7:0]
header 7 : multi-function device
“0” : device is single function
“1” : device is multi-function
header[6..0] : header second part layout
15..8
latency timer [7:0] this field specifies the value for latency timer in PCI bus clock unit
7..0
cache line size
[7:0]
Specifies the cache line size
Bit Number
Mnemonic
Description
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