參數(shù)資料
型號(hào): MDS212CG
廠商: ZARLINK SEMICONDUCTOR INC
元件分類(lèi): 網(wǎng)絡(luò)接口
英文描述: 12-Port 10/100Mbps Ethernet Switch
中文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA456
封裝: 35 X 35 MM, 2.33 MM HEIGHT, MS-034, HSBGA-456
文件頁(yè)數(shù): 66/111頁(yè)
文件大小: 1609K
代理商: MDS212CG
MDS212
Data Sheet
66
Zarlink Semiconductor Inc.
18.2 Register Definitions
18.2.1 Device Configuration Register
18.2.1.1 GCR - Global Control Register
Access:
Address:
Zero-Wait-State,
h7C0
Direct Access,
Write only
Bit [2:0]Op-Code3-bit Operation Control Code
Bit [7:4]
SYN bits, reserved for HISC Usage.
18.2.1.2 DCR0 - Device Status Register
Access:
Address:
Zero-Wait-State,
h7C0
Direct Access,
Read only
Bit [1:0]
Status
2-bit Device Operation Status Code
Power-up default = 00
Bit [31:2]
Reserved
31
24
23
20
19
16
15
12
11
8
7
4
3
2
0
SYNC
Op-Code
Op-Code
Command
Description
000
Clr RST
Clear Device Reset:
Allows state machines to exit from RESET state
and to initialize their internal control parameters if necessary.
001
RESET
Device Reset:
Resets all internal state machines of each device and
stays in RESET state (except the Processor Bus Interface logic).
010
EXEC
Execution:
Allows state machines to start their normal operations.
011
--
No-Op
1XX
--
No-Op
Table 10 - Global Control Register
31
8
7
6
5
4
3
2
0
Status
Status
State
Description
00
INIT
Initialization:
Device is in idle state pending for system software
initialization.
01
RESET
Device Reset:
Device is in RESET state.
10
EXEC
Execution:
Device is under normal operation.
Table 11 - Device Status Register
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