Contents
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Number Title
Page
Number
G2 PowerPC Core Reference Manual
8.3.6.3 Data Bus Busy .......................................................................................... 8-30
8.3.6.3.1 Data Bus Busy In (core_dbb_in
)........................................................... 8-30
8.3.6.3.2 Data Bus Busy Out (core_dbb_out
)....................................................... 8-30
8.3.6.3.3 Data Bus Busy Output Enable (core_dbb_oe)—Output........................ 8-31
8.3.6.3.4 Data Bus Busy High-Impedance Enable (core_dbb_tre)—Input.......... 8-31
8.3.7 Data Transfer Signals..................................................................................... 8-31
8.3.7.1 Data Bus ....................................................................................................8-32
8.3.7.1.1 Data Bus In (core_dh_in[0:31], core_dl_in[0:31])................................ 8-32
8.3.7.1.2 Data Bus Input Enable (core_dh_ien, core_dl_ien)—Output ............... 8-32
8.3.7.1.3 Data Bus Out (core_dh_out[0:31], core_dl_out[0:31])—Output.......... 8-33
8.3.7.1.4 Data Bus Output Enable (core_d_oe)—Output..................................... 8-33
8.3.7.1.5 Data Bus High-Impedance Enable (core_d_tre)—Input ....................... 8-34
8.3.7.2 Data Bus Parity (DP[0:7]) .........................................................................8-34
8.3.7.2.1 Data Bus Parity In (core_dp_in[0:7]).................................................... 8-34
8.3.7.2.2 Data Bus Parity Input Enable (core_dp_ien)—Output.......................... 8-35
8.3.7.2.3 Data Bus Parity Out (core_dp_out[0:7]) ............................................... 8-35
8.3.7.3 Data Parity Error (core_dpe
)—Output ...................................................... 8-35
8.3.7.3.1 Data Parity Error Output Enable (core_dpe_oe)—Output .................... 8-36
8.3.7.3.2 Data Parity Error High-Impedance Enable (core_dpe_tre)—Input....... 8-36
8.3.7.4 Data Bus Disable (core_dbdis)—Input...................................................... 8-36
8.3.8 Data Transfer Termination Signals................................................................8-37
8.3.8.1 Transfer Acknowledge (core_ta)—Input................................................... 8-37
8.3.8.2 Data Retry (core_drtry)—Input.................................................................8-38
8.3.8.3 Transfer Error Acknowledge (core_tea)—Input........................................ 8-38
8.3.9 Interrupt and Checkstop Signals....................................................................8-39
8.3.9.1 External Interrupt (core_int)—Input.......................................................... 8-39
8.3.9.2 Critical Interrupt (core_cint)—Input: G2_LE Core-Only ......................... 8-39
8.3.9.3 System Management Interrupt (core_smi
)—Input.................................... 8-40
8.3.9.4 Machine Check Interrupt (core_mcp)—Input........................................... 8-40
8.3.9.5 Checkstop Signals...................................................................................... 8-41
8.3.9.5.1 Checkstop Input (core_ckstp_in)........................................................... 8-41
8.3.9.5.2 Checkstop Output (core_ckstp_out)...................................................... 8-41
8.3.9.5.3 Checkstop Output Enable (core_ckstp_oe)—Output ............................ 8-42
8.3.9.5.4 Checkstop High-Impedance Enable (core_ckstp_tre)—Input............... 8-42
8.3.10 Reset Signals.................................................................................................. 8-42
8.3.10.1 Hard Reset (core_hreset)—Input............................................................... 8-42
8.3.10.2 Soft Reset (core_sreset)—Input................................................................. 8-43
8.3.10.3 Reset Configuration Signals...................................................................... 8-43
8.3.10.3.1 32-Bit Mode (core_32bitmode)—Input................................................. 8-43
8.3.10.3.2 Reduced Pinout Mode (core_redpinmode)—Input ............................... 8-44
8.3.10.3.3 MSR IP Bit Set Mode (core_msrip)—Input.......................................... 8-44