TMS320VC5507_14 Datasheet, PDF (100/137 Pages) Texas Instruments – Fixed-Point Digital Signal Processor

Electrical Specifications
5.8.3 Warm Reset
Table 5−14 and Table 5−15 assume testing over recommended operating conditions (see Figure 5−17).
Table 5−14. Reset Timing Requirements
NO.
R4 tw(RSL)
Pulse width, reset low
† _{P = 1/CPU clock frequency in ns. For example, when running parts at 200 MHz, use P = 5 ns.}
CVDD = 1.2 V
CVDD = 1.35 V
MIN MAX
3P†
CVDD = 1.6 V
MIN MAX
3P†
UNIT
ns
Table 5−15. Reset Switching Characteristics^†
NO.
PARAMETER
CVDD = 1.2 V
CVDD = 1.35 V
CVDD = 1.6 V
UNIT
MIN
MAX
MIN
MAX
R5 td(RSTH-BKV)
R6 td(RSTH-HIGHV)
R7 td(RSTL-ZIV)
R8 td(RSTH-ZV)
Delay time, reset high to BK group valid‡
Delay time, reset high to High group valid§
Delay time, reset low to Z group invalid¶
Delay time, reset high to Z group valid¶
38P + 15
38P + 15
1P + 15
38P + 15
38P + 15 ns
38P + 15 ns
1P + 15 ns
38P + 15 ns
† _{P = 1/CPU clock frequency in ns. For example, when CPU is running at 200 MHz, P = 5 ns.}
‡ _{BK group: Pins with bus keepers, holds previous state during reset. Following low-to-high transition of RESET, these pins go to their post-reset}
logic state.
BK group pins: A’[0], A[15:0], D[15:0], C[14:2], C0, GPIO5, DX1, and DX2
§ _{High group: Following low-to-high transition of RESET, these pins go to logic-high state.}
High group pins: C1[HPI.HINT], XF
¶ _{Z group: Bidirectional pins which become input or output pins. Following low-to-high transition of RESET, these pins go to high-impedance state.}
Z group pins: C1[EMIF.AOE], GPIO[7:6, 4:0], TIN/TOUT0, SDA, SCL, CLKR0, FSR0, CLKX0, DX0, FSX0, FSX2, CLKX2, FSR2, DR2, CLKR2,
FSX1, CLKX1, FSR1, DR1, CLKR1, A[20:16]
RESET
R5
BK Group†
High Group‡
R7
Z Group§
R6
R8
† _{BK group pins: A’[0], A[15:0], D[15:0], C[14:2], C0, GPIO5, DX1, and DX2}
‡ _{High group pins: C1[HPI.HINT], XF}
§ _{Z group pins: C1[EMIF.AOE], GPIO[7:6, 4:0], TIN/TOUT0, SDA, SCL, CLKR0, FSR0, CLKX0, DX0, FSX0, FSX2, CLKX2, FSR2, DR2, CLKR2,}
FSX1, CLKX1, FSR1, DR1, CLKR1, A[20:16]
Figure 5−17. Reset Timings
100 SPRS244J
April 2004 − Revised January 2008