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參數(shù)資料
| 型號： | SMH4814SR01 |
| 廠商： | Summit Microelectronics, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Dual Feed Active-ORing Programmable Hot Swap Controller |
| 中文描述： | 雙飼料有源ORing提供可編程熱插拔控制器 |
| 文件頁數(shù)： | 26/44頁 |
| 文件大小： | 935K |
| 代理商： | SMH4814SR01 |
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SMH4814
I
2
C 2-WIRE SERIAL INTERFACE (CONTINUED)
Preliminary Information
Summit Microelectronics, Inc
2080 2.0 07/21/05
26
Figure 21 - Typical EE Memory Write and Random Read Operations
Register Access
The SMH4814 contains a 2-wire bus interface for
register access as explained in the previous section.
This bus is highly configurable, while maintaining the
industry standard protocol. The SMH4814 responds to
one of two selectable Device Type Addresses:
1010
BIN
, generally assigned to NV-memories and the
default address for the SMH4814, or 1011
BIN
. The
Device Type Address is assigned by programming bit
3 of Register 0x0F.
The configuration registers may be locked out by
setting bit 5 of register 0x0F high. This is a one-time,
non-reversible operation.
The SMH4814 has two virtual address pins, A[2:1] (set
with R0F[7:6]), associated with the 2-wire bus. The
SMH4814 can be configured to respond to:
1. only to the proper serial data string of the
Device Type Address and specific bus
addresses (Register 0x0F, bit 4 cleared).
2. the Device Type Address and any bus
address (Register 0x0F, bit 4 set).
Slave Address
Bus Address
Register Type
1001
BIN
A2 A1 0
Command and Status Registers,
A2 A1 0
2-k Bits of General-Purpose Memory
1010
BIN
or
1011
BIN
A2 A1 1
Configuration Registers
Table 2 - Address bytes used by the SMH4814.
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