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| 型號(hào)： | 71M6531D-IMR/F |
| 廠商： | TERIDIAN SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC68 |
| 封裝： | LEAD FREE, QFN-68 |
| 文件頁(yè)數(shù)： | 64/120頁(yè) |
| 文件大小： | 2477K |
| 代理商： | 71M6531D-IMR/F |
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Data Sheet 71M6531D/F-71M6532D/F
FDS 6531/6532 005
48
2005-2010 TERIDIAN Semiconductor Corporation
v1.3
Table 48: EECTRL Bits for the 3-Wire Interface
Control
Bit
Name
Read/
Write
Description
7
WFR
W
Wait for Ready. If this bit is set, the trailing edge of BUSY will be delayed
until a rising edge is seen on the data line. This bit can be used during
the last byte of a Write command to cause the INT5 interrupt to occur
when the EEPROM has finished its internal write sequence. This bit is
ignored if HiZ = 0.
6
BUSY
R
Asserted while the serial data bus is busy. When the BUSY bit falls, an
INT5 interrupt occurs.
5
HiZ
W
Indicates that the SD signal is to be floated to high impedance immediately
after the last SCK rising edge.
4
RD
W
Indicates that EEDATA is to be filled with data from EEPROM.
3:0
CNT[3:0]
W
Specifies the number of clocks to be issued. Allowed values are 0
through 8. If RD=1, CNT bits of data will be read MSB first and right
justified into the low order bits of EEDATA. If RD=0, CNT bits will be sent
MSB first to the EEPROM, shifted out of the MSB of EEDATA. If
CNT[3:0] is zero, SDATA will simply obey the HiZ bit.
The timing diagrams in Figure 11 through Figure 15 describe the 3-wire EEPROM interface behavior. All
commands begin when the EECTRL register is written. Transactions start by first raising the DIO pin that
is connected to CS. Multiple 8-bit or less commands such as those shown in Figure 11 through Figure 15
are then sent via EECTRL and EEDATA.
When the transaction is finished, CS must be lowered. At the end of a Read transaction, the EEPROM
will be driving SDATA, but will transition to HiZ (high impedance) when CS falls. The firmware should
then immediately issue a write command with CNT=0 and HiZ=0 to take control of SDATA and force it to
a low-Z state.
Figure 11: 3-Wire Interface. Write Command, HiZ=0
Figure 12: 3-Wire Interface. Write Command, HiZ=1
SCLK (output)
BUSY (bit)
CNT Cycles (6 shown)
SDATA (output)
Write -- No HiZ
D2
D3
D4
D5
D6
D7
EECTRL Byte Written
INT5
SDATA output Z
(LoZ)
CNT Cycles (6 shown)
Write -- With HiZ
INT5
EECTRL Byte Written
SCLK (output)
BUSY (bit)
SDATA (output)
D2
D3
D4
D5
D6
D7
(HiZ)
(LoZ)
SDATA output Z
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| 71M6531F | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Energy Meter IC |
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| 71M6531F-IM/F3 | 功能描述:計(jì)量片上系統(tǒng) - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時(shí)鐘頻率:70 Hz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel |
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