ADUC7122 Analog Devices, ADUC7122 Datasheet - Page 62

• Manufacturer Part Number: ADUC7122
• Description: Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI® MCU
• Manufacturer: Analog Devices

Specifications of ADUC7122

• Mcu Core: ARM7 TDMI
• Mcu Speed (mips): 40
• Sram (bytes): 8192Bytes
• Gpio Pins: 32
• Adc # Channels: 13

ADuC7122
I
Name:
Address:
Default Value:
Access:
Function:
I
Name:
Address:
Default Value:
Access:
Function:
Table 103. I2CxMCNT0 MMR Bit Descriptions (Address = 0xFFFF0890, 0xFFFF0910, Default Value = 0x0000)
Bit
15:9
8
7:0
2
2
C Master Receive Register
C Master Transmit Register
Name
I2CRECNT
I2CRCNT
I2C0MRX , I2C1MRX
0xFFFF0888, 0xFFFF0908
0x00, 0x00
Read only
This 8-bit MMR is the I
register.
I2C0MTX, I2C1MTX
0xFFFF088C, 0xFFFF090C
0x00, 0x00
Read/write
This 8-bit MMR is the I
register.
Description
Reserved.
Set this bit if greater than 256 bytes are required from the slave.
Clear this bit when reading 256 bytes or less.
These eight bits hold the number of bytes required during a slave read sequence, minus 1. If only a single byte is
required, these bits should be set to 0.
2
2
C master receive
C master transmit
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I
Name:
Address:
Default Value:
Access:
Function:
I
Name:
Address:
Default Value:
Access:
Function:
2
2
C Master Read Count Register
C Master Current Read Count Register
I2C0MCNT0, I2C1MCNT0
0xFFFF0890, 0xFFFF0910
0x0000, 0x0000
Read/write
This 16-bit MMR holds the required number
of bytes when the master begins a read
sequence from a slave device.
I2C0MCNT1, I2C1MCNT1
0xFFFF0894, 0xFFFF0914
0x00, 0x00
Read
This 8-bit MMR holds the number of bytes
received so far during a read sequence with a
slave device.