C8051F988-GM Silicon Laboratories Inc, C8051F988-GM Datasheet - Page 317

• Manufacturer Part Number: C8051F988-GM
• Description: IC MCU 8BIT 4KB FLASH 24QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F9xxr

Specifications of C8051F988-GM

• Program Memory Type: FLASH
• Program Memory Size: 4KB (4K x 8)
• Package / Case: 24-UQFN Exposed Pad, 24-HUQFN
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 17
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F9x
• Core: 8051
• Data Ram Size: 512 B
• Interface Type: I2C, SMBus, Enhanced UART, Enhanced SPI
• Maximum Clock Frequency: 7 KHz
• Number Of Programmable I/os: 17
• Number Of Timers: 4
• Operating Supply Voltage: 2.4 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F996DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 10 Channel
• On-chip Dac: 10 bit, 4 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1959-5

27. C2 Interface
C8051F99x-C8051F98x devices include an on-chip Silicon Labs 2-Wire (C2) debug interface to allow
Flash programming and in-system debugging with the production part installed in the end application. The
C2 interface uses a clock signal (C2CK) and a bi-directional C2 data signal (C2D) to transfer information
between the device and a host system. See the C2 Interface Specification for details on the C2 protocol.
27.1. C2 Interface Registers
The following describes the C2 registers necessary to perform Flash programming through the C2 inter-
face. All C2 registers are accessed through the C2 interface as described in the C2 Interface Specification.
C2 Register Definition 27.1. C2ADD: C2 Address
Name
Reset
Bit
7:0 C2ADD[7:0] C2 Address.
Type
Bit
Name
7
0
The C2ADD register is accessed via the C2 interface to select the target Data register
for C2 Data Read and Data Write commands.
Address
0x00
0x01
0x02
0xB4
6
0
5
0
Description
Selects the Device ID register for Data Read instructions
Selects the Revision ID register for Data Read instructions
Selects the C2 Flash Programming Control register for Data
Read/Write instructions
Selects the C2 Flash Programming Data register for Data
Read/Write instructions
Rev. 1.0
4
0
C2ADD[7:0]
R/W
C8051F99x-C8051F98x
Function
3
0
2
0
1
0
0
0
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