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参数资料
| 型号： | ADUC7061BCPZ32-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 97/108页 |
| 文件大小： | 0K |
| 描述： | IC MCU 16/32BIT 32KB 32LFCSP |
| 产品变化通告： | ADuC7060/1 Idd Specification Change 01/Feb/2010 |
| 设计资源： | USB Based Temperature Monitor Using ADuC7061 and an External RTD (CN0075) 4 mA-to-20 mA Loop-Powered Temperature Monitor Using ADuC7060/1 (CN0145) |
| 标准包装： | 5,000 |
| 系列： | MicroConverter® ADuC7xxx |
| 核心处理器： | ARM7 |
| 芯体尺寸： | 16/32-位 |
| 速度： | 10MHz |
| 连通性： | I²C，SPI，UART/USART |
| 外围设备： | POR，PWM，温度传感器，WDT |
| 输入/输出数： | 8 |
| 程序存储器容量： | 32KB（16K x 16） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 1K x 32 |
| 电压 - 电源 (Vcc/Vdd)： | 2.375 V ~ 2.625 V |
| 数据转换器： | A/D 5x24b，8x24b，D/A 1x14b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 32-VFQFN 裸露焊盘，CSP |
| 包装： | 带卷 (TR) |
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Data Sheet
ADuC7060/ADuC7061
Rev. D | Page 89 of 108
I2C Master Status, I2CMSTA, Register
Name:
I2CMSTA
Address:
0xFFFF0904
Default value:
0x0000
Access:
Read only
Function:
This 16-bit MMR is the I2C status register in master mode.
Table 98. I2CMSTA MMR Bit Designations
Bit
Name
Description
15:11
Reserved. These bits are reserved.
10
I2CBBUSY
I2C bus busy status bit.
This bit is set to 1 when a start condition is detected on the I2C bus.
This bit is cleared when a stop condition is detected on the bus.
9
I2CMRxFO
Master receive FIFO overflow.
This bit is set to 1 when a byte is written to the receive FIFO when it is already full.
This bit is cleared in all other conditions.
8
I2CMTC
I2C transmission complete status bit.
This bit is set to 1 when a transmission is complete between the master and the slave with which it was
communicating. If the I2CMCENI bit in I2CMCON is set, an interrupt is generated when this bit is set.
Clear this interrupt source.
7
I2CMNA
I2C master no acknowledge data bit
This bit is set to 1 when a no acknowledge condition is received by the master in response to a data write transfer. If
the I2CNACKENI bit in I2CMCON is set, an interrupt is generated when this bit is set.
This bit is cleared in all other conditions.
6
I2CMBUSY
I2C master busy status bit.
Set to 1 when the master is busy processing a transaction.
Cleared if the master is ready or if another master device has control of the bus.
5
I2CAL
I2C arbitration lost status bit.
This bit is set to 1 when the I2C master does not gain control of the I2C bus. If the I2CALENI bit in I2CMCON is set, an
interrupt is generated when this bit is set.
This bit is cleared in all other conditions.
4
I2CMNA
I2C master no acknowledge address bit.
This bit is set to 1 when a no acknowledge condition is received by the master in response to an address. If the
I2CNACKENI bit in I2CMCON is set, an interrupt is generated when this bit is set.
This bit is cleared in all other conditions.
3
I2CMRXQ
I2C master receive request bit.
This bit is set to 1 when data enters the receive FIFO. If the I2CMRENI in I2CMCON is set, an interrupt is generated.
This bit is cleared in all other conditions.
2
I2CMTXQ
I2C master transmit request bit.
This bit goes high if the transmit FIFO is empty or contains only one byte and the master has transmitted an address
+ write. If the I2CMTENI bit in I2CMCON is set, an interrupt is generated when this bit is set.
This bit is cleared in all other conditions.
1:0
I2CMTFSTA
I2C master transmit FIFO status bits.
[00] = I2C master transmit FIFO empty.
[01] = 1 byte in master transmit FIFO.
[10] = 1 byte in master transmit FIFO.
[11] = I2C master transmit FIFO full.
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