C8051T322-GQR Silicon Labs, C8051T322-GQR Datasheet - Page 198

• Manufacturer Part Number: C8051T322-GQR
• Description: 8-bit Microcontrollers - MCU USB-OTP-16K-LQFP32
• Manufacturer: Silicon Labs

Specifications of C8051T322-GQR

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit

C8051T620/621/320/321/322/323
In this case, either a 1 or a 0 value are acceptable on the incoming slave address. Additionally, if the GC bit
in register SMB0ADR is set to 1, hardware will recognize the General Call Address (0x00). Table 24.4
shows some example parameter settings and the slave addresses that will be recognized by hardware
under those conditions.
SFR Definition 24.3. SMB0ADR: SMBus Slave Address
SFR Address = 0xC7
198
Hardware Slave Address
SLV[6:0]
0x34
0x34
0x34
0x34
0x70
Name
Reset
7:1
Bit
Type
0
Bit
SLV[6:0]
Name
GC
7
0
Table 24.4. Hardware Address Recognition Examples (EHACK = 1)
SMBus Hardware Slave Address.
Defines the SMBus Slave Address(es) for automatic hardware acknowledgement.
Only address bits which have a 1 in the corresponding bit position in SLVM[6:0]
are checked against the incoming address. This allows multiple addresses to be
recognized.
General Call Address Enable.
When hardware address recognition is enabled (EHACK = 1), this bit will deter-
mine whether the General Call Address (0x00) is also recognized by hardware.
0: General Call Address is ignored.
1: General Call Address is recognized.
6
0
Slave Address Mask
SLVM[6:0]
0x7F
0x7F
0x7E
0x7E
0x73
5
0
SLV[6:0]
R/W
Rev. 1.1
4
0
GC bit
0
1
0
1
0
Function
3
0
Slave Addresses Recognized by
Hardware
0x34
0x34, 0x00 (General Call)
0x34, 0x35
0x34, 0x35, 0x00 (General Call)
0x70, 0x74, 0x78, 0x7C
2
0
1
0
R/W
GC
0
0