C8051F122 Silicon Laboratories Inc, C8051F122 Datasheet - Page 342

• Manufacturer Part Number: C8051F122
• Description: IC 8051 MCU FLASH 128K 100TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F12xr

Specifications of C8051F122

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 100MHz
• Connectivity: EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 64
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8.25K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x8b, 8x10b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
25.1. Boundary Scan
The DR in the Boundary Scan path is an 134-bit shift register. The Boundary DR provides control and
observability of all the device pins as well as the SFR bus and Weak Pullup feature via the EXTEST and
SAMPLE commands.
342
EXTEST provides access to both capture and update actions, while Sample only performs a capture.
108, 110, 112, 114,
22, 24, 26, 28, 30,
23, 25, 27, 29, 31,
38, 40, 42, 44, 46,
39, 41, 43, 45, 47,
54, 56, 58, 60, 62,
55, 57, 59, 61, 63,
70, 72, 74, 76, 78,
71, 73, 75, 77, 79,
86, 88, 90, 92, 94,
87, 89, 91, 93, 95,
6, 8, 10, 12, 14,
7, 9, 11, 13, 15,
102, 104, 106,
96, 98, 100
97, 99, 101
16, 18, 20
17, 19, 21
32, 34, 36
33, 35, 37
48, 50, 52
49, 51, 53
64, 66, 68
65, 67, 69
80, 82, 84
81, 83, 85
116
Bit
0
1
2
3
4
5
Table 25.1. Boundary Data Register Bit Definitions
Action
Capture Reset Enable from MCU (64-pin TQFP devices)
Update
Capture Reset input from
Update
Capture Reset Enable from MCU (100-pin TQFP devices)
Update
Capture Reset input from
Update
Capture External Clock from XTAL1 pin
Update
Capture Weak pullup enable from MCU
Update
Capture P0.n output enable from MCU (e.g. Bit6=P0.0, Bit8=P0.1, etc.)
Update
Capture P0.n input from pin (e.g. Bit7=P0.0, Bit9=P0.1, etc.)
Update
Capture P1.n output enable from MCU
Update
Capture P1.n input from pin
Update
Capture P2.n output enable from MCU
Update
Capture P2.n input from pin
Update
Capture P3.n output enable from MCU
Update
Capture P3.n input from pin
Update
Capture P4.n output enable from MCU
Update
Capture P4.n input from pin
Update
Capture P5.n output enable from MCU
Update
Capture P5.n input from pin
Update
Capture P6.n output enable from MCU
Update
Target
Reset Enable to
Reset output to
Reset Enable to
Reset output to
Not used
Weak pullup enable to Port Pins
P0.n output enable to pin (e.g. Bit6=P0.0oe, Bit8=P0.1oe, etc.)
P0.n output to pin (e.g. Bit7=P0.0, Bit9=P0.1, etc.)
P1.n output enable to pin
P1.n output to pin
P2.n output enable to pin
P2.n output to pin
P3.n output enable to pin
P3.n output to pin
P4.n output enable to pin
P4.n output to pin
P5.n output enable to pin
P5.n output to pin
P6.n output enable to pin
RST
RST
RST
RST
RST
RST
Rev. 1.4
pin (64-pin TQFP devices)
pin (100-pin TQFP devices)
pin (64-pin TQFP devices)
pin (100-pin TQFP devices)
pin (64-pin TQFP devices)
pin (100-pin TQFP devices)