AT32UC3C1512C Automotive Atmel Corporation, AT32UC3C1512C Automotive Datasheet - Page 1219

• Manufacturer Part Number: AT32UC3C1512C Automotive
• Manufacturer: Atmel Corporation

9166C–AVR-08/11
The size field is encoded as i
Table 39-18. Size Field Semantics
Starting in Run-Test/Idle, SAB data is accessed in the following way:
For any operation, the full 36 bits of the address must be provided. For write operations, 32 data
bits must be provided, or the result will be undefined. For read operations, shifting may be termi-
nated once the required number of bits have been acquired.
Table 39-19. MEMORY_SIZED_ACCESS Details
Size field value
00
01
10
11
Instructions
IR input value
IR output value
DR Size
DR input value (Address phase)
DR input value (Data read phase)
DR input value (Data write phase)
1. Select the IR Scan path.
2. In Capture-IR: The IR output value is latched into the shift register.
3. In Shift-IR: The instruction register is shifted by the TCK input.
4. Return to Run-Test/Idle.
5. Select the DR Scan path.
6. In Shift-DR: Scan in the direction bit (1=read, 0=write), 2-bit access size, and the 36-bit
7. Go to Update-DR and re-enter Select-DR Scan.
8. In Shift-DR: For a read operation, scan out the contents of the addressed area. For a
9. Return to Run-Test/Idle.
address of the data to access.
write operation, scan in the new contents of the area.
Access size
Byte (8 bits)
Halfword (16 bits)
Word (32 bits)
Reserved
Table
39-18.
Details
10101 (0x15)
peb01
39 bits
aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaassr
xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxx
dddddddd dddddddd dddddddd dddddddd xxxxxxx
Data alignment
Address modulo 4 : data alignment
0: dddddddd xxxxxxxx xxxxxxxx xxxxxxxx
1: xxxxxxxx dddddddd xxxxxxxx xxxxxxxx
2: xxxxxxxx xxxxxxxx dddddddd xxxxxxxx
3: xxxxxxxx xxxxxxxx xxxxxxxx dddddddd
Address modulo 4 : data alignment
0: dddddddd dddddddd xxxxxxxx xxxxxxxx
1: Not allowed
2: xxxxxxxx xxxxxxxx dddddddd dddddddd
3: Not allowed
Address modulo 4 : data alignment
0: dddddddd dddddddd dddddddd dddddddd
1: Not allowed
2: Not allowed
3: Not allowed
N/A
AT32UC3C
1219