C8051F124TB Silicon Laboratories Inc, C8051F124TB Datasheet - Page 342

• Manufacturer Part Number: C8051F124TB
• Description: MCU, MPU & DSP Development Tools With C8051F124 MCU
• Manufacturer: Silicon Laboratories Inc

Specifications of C8051F124TB

• Processor To Be Evaluated: C8051F12x and C8051F13x
• Interface Type: USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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)