參數(shù)資料
型號： MAX3109ETJ+
廠商： Maxim Integrated Products
文件頁數(shù)： 49/66頁
文件大?。?/td> 0K
描述： SEMICONDUCTOR OTHER
標(biāo)準(zhǔn)包裝： 60
系列： *
Dual Serial UART with 128-Word FIFOs
MAX3109
53
Maxim Integrated
Global Command Register (GloblComnd)
Bits 7–0: GlbComx
The GloblComnd register is the only global write register in the MAX3109. Every byte written to GloblComnd is sent
simultaneously to both UARTs. Every byte sent by the SPI/I2C master to register 0x1F is interpreted as a global com-
mand by both internal UARTs, regardless of which UART it was written to.
The MAX3109 logic supports the following commands (Table 5):
GlobalTxSynchronization
ExtendedAddressingSpaceEnable(toenableaccesstoregistersbeyondaddress0x1F)
ExtendedAddressingSpaceDisable(todisableaccesstoregistersbeyondaddress0x1F)
The last two commands (0xCE/0xCD) enable or disable access to registers in the extended space of the register map
when the MAX3109 operates in SPI mode. The SPI command byte has only 5 bits to address a given register so that
the registers beyond 0x1F could not be addressed using the standard access method. In I2C mode, there is no need
to explicitly enable and disable the extended register map access as I2C allows up to 7 bits for register addressing. To
extend the addressing capability of the SPI command byte, send a 0xCE to location 0x1F. The internal SPI address in
extended access mode is generated as 0010 A3A2A1A0, where A3A2A1A0 is the least significant nibble of the com-
mand byte. Bit A4 of the command byte is disregarded when the extended space of the register map is enabled and
only the least significant nibble is used for addressing purposes (Table 6).
The U bit of the command byte maintains its meaning in the extended mode. See the SPI Interface section for more
information. To return to standard addressing mode, the SPI master sends the 0xCD command to register 0x1F. In this
case, the internal SPI address will be generated as follows (default): 000A4 A3A2A1A0.
Table 5. GloblComnd Command
Descriptions
Table 6. Extended Mode Addressing
(SPI Only)
ADDRESS:
0x1F
MODE:
W
BIT
7
6
5
4
3
2
1
0
NAME
GlbCom7
GlbCom6
GlbCom5
GlbCom4
GlbCom3
GlbCom2
GlbCom1
GlbCom0
GloblComndx
COMMAND DESCRIPTION
0xE0
Tx Command 0
0xE1
Tx Command 1
0xE2
Tx Command 2
0xE3
Tx Command 3
0xE4
Tx Command 4
0xE5
Tx Command 5
0xE6
Tx Command 6
0xE7
Tx Command 7
0xE8
Tx Command 8
0xE9
Tx Command 9
0xEA
Tx Command 10
0xEB
Tx Command 11
0xEC
Tx Command 12
0xED
Tx Command 13
0xEE
Tx Command 14
0xEF
Tx Command 15
0xCE
Enable extended register map access
0xCD
Disable extended register map access
REGISTER
SPI MODE
ADDRESS
I2C MODE
ADDRESS
TxSynch
0x00
0x20
SynchDelay1
0x01
0x21
SynchDelay2
0x02
0x22
TIMER1
0x03
0x23
TIMER2
0x04
0x24
RevID
0x05
0x25
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MAX3109ETJ+ 功能描述:UART 接口集成電路 Dual Serial UART with 128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
MAX3109ETJ+T 功能描述:UART 接口集成電路 Dual Serial UART with 128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
MAX310C/D 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MAX310CPE 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MAX310CPE+ 功能描述:多路器開關(guān) IC 8:1 Unbuffered RF Video MUX RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
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