UM0434 datasheet(254/390 Pages) STMICROELECTRONICS

254 / 390 page

UM0434

External core complex interfaces

255/391

9.3.1

Processor state signals

Table 179 describes the processor state signals.

p_pvrin[16:31]

Processor version. Provide a portion of the version number for a particular CPU. Reflected in

the PVR. See

Chapter 4.4.3: Processor version register (PVR) on page 45.”

Timing Intended to remain in a static condition and are not internally synchronized.

Table 178.

Descriptions of miscellaneous processor signals (continued)

Signal

I/O

Signal description

Table 179.

Descriptions of processor state signals

Signal

I/O

Signal description

p_pstat[0:6]

Processor status. Indicate the internal execution unit status. Any values not shown are reserved.

p_pstat[0:6]Internal Processor Status

00000xx Execution stalled

00001xx Execute exception

00010xx Instruction squashed

01000xx Processor in halted state

01001xx Processor in stopped state

01010xx Processor in debug mode(1)

01011xx Processor in checkstop state

10000sm Complete instruction(2),(3)

1000100 Complete lmw or stmw

1000101 Complete e_lmw or e_stmw

1001000 Complete isync

1001011 Complete se_isync

100110m Complete lwarx or stwcx. 3

1100000 Complete branch instruction bc, bcl, bca, bcla, b, bl, ba, bla resolved as not taken

1100001 Complete branch instruction e_bc, e_bcl, e_b, e_bl resolved as not taken

1100011 Complete branch instruction se_bc, se_bcl, se_b, se_bl resolved as not taken

1100100 Complete branch instruction bc, bcl, bca, bcla, b, bl, ba, bla resolved as taken

1100101 Complete branch instruction e_bc, e_bcl, e_b, e_bl resolved as taken

1100111 Complete branch instruction se_bc, se_bcl, se_b, se_bl resolved as taken

1101000 Complete bclr, bclrl, bcctr, bcctrl resolved as not taken

1101100 Complete bclr, bclrl, bcctr, bcctrl resolved as taken

1101111 Complete se_blr, se_blrl, se_bctr, se_bctrl (always taken)

111000m Complete isel with condition false

111010m Complete isel with condition true

1111100 Complete rfi, rfci, or rfdi

1111111 Complete se_rfi, se_rfci, or se_rfdi

Timing

Synchronous with

m_clk, so the indicated status may not apply to a current bus

transfer.

UM0434 Datasheet(PDF) 254 Page - STMicroelectronics

UM0434 Datasheet(HTML) 254 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL