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參數(shù)資料
| 型號： | FM32274-G |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| 封裝： | GREEN, MS-012AB, SOIC-14 |
| 文件頁數(shù)： | 19/21頁 |
| 文件大?。?/td> | 417K |
| 代理商： | FM32274-G |
FM32278/276/274/272 - 5V I2C Companion
Rev. 3.1
July 2010
Page 7 of 21
Register Map
The processor companion functions are accessed via 16 special function registers mapped to a separate 2-wire
device ID. The interface protocol is described below. The registers contain timekeeping data, control bits, or
information flags. A description of each register follows the summary table below.
Register Map Summary Table
Nonvolatile =
Battery-backed =
Address
D7
D6
D5
D4
D3
D2
D1
D0
Function
Range
Serial Number Byte 7
Serial Number 7
FFh
Serial Number Byte 6
Serial Number 6
FFh
Serial Number Byte 5
Serial Number 5
FFh
Serial Number Byte 4
Serial Number 4
FFh
Serial Number Byte 3
Serial Number 3
FFh
Serial Number Byte 2
Serial Number 2
FFh
Serial Number Byte 1
Serial Number 1
FFh
Serial Number Byte 0
Serial Number 0
FFh
10h
Counter 2 MSB
Event Counter 2 MSB
FFh
0Fh
Counter 2 LSB
Event Counter 2 LSB
FFh
0Eh
Counter 1 MSB
Event Counter 1 MSB
FFh
0Dh
Counter 1 LSB
Event Counter 1 LSB
FFh
0Ch
RC
CC
C2P
C1P
Event Count Control
0Bh
SNL
-
FC
WP1
WP0
VBC
-
VTP
Companion Control
0Ah
WDE
-
WDT4
WDT3
WDT2
WDT1
WDT0
Watchdog Control
09h
WTR
POR
LB
-
WR3
WR2
WR1
WR0
Watchdog Restart/Flags
00-08h
RESERVED
DO NOT USE
18h
17h
11h
16h
15h
14h
13h
12h
*Note that the usable address range starts at address 09h to preserve software compatibility with the FM3127x
device family, which includes a real-time clock in registers 00-08h.
Note: When the device is first powered up and programmed, all registers must be written because the battery-
backed register values cannot be guaranteed. The table below shows the default values of the non-volatile
registers. All other register values should be treated as unknown.
Default Register Values
Address
Hex Value
18h
0x00
17h
0x00
16h
0x00
15h
0x00
14h
0x00
13h
0x00
12h
0x00
11h
0x00
0Bh
0x00
0Ah
0x1F
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| FM32278-GTR | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| FM32278-G | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FM32274-GTR | 功能描述:F-RAM 16K w/Pwr Mon WDT Bat Sw PF Ser Num RoHS:否 存儲容量:512 Kbit 組織:64 K x 8 接口:SPI 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube 制造商:Cypress Semiconductor |
| FM32276 | 制造商:RAMTRON 制造商全稱:RAMTRON 功能描述:5V Integrated Processor Companion with Memory |
| FM32276-G | 功能描述:F-RAM 64K w/Pwr Mon WDT Bat Sw PF Ser Num RoHS:否 存儲容量:512 Kbit 組織:64 K x 8 接口:SPI 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube 制造商:Cypress Semiconductor |
| FM32276-GTR | 功能描述:F-RAM 64K w/Pwr Mon WDT Bat Sw PF Ser Num RoHS:否 存儲容量:512 Kbit 組織:64 K x 8 接口:SPI 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube 制造商:Cypress Semiconductor |
| FM32278 | 制造商:RAMTRON 制造商全稱:RAMTRON 功能描述:5V Integrated Processor Companion with Memory |
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