TMS320C6421 datasheet(9/223 Pages) TI

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TMS320C6421

Fixed-Point Digital Signal Processor

SPRS346C – JANUARY 2007 – REVISED NOVEMBER 2007

SEE

ADDITIONS/MODIFICATIONS/DELETIONS

Section 6.12.3

Section 6.12.3, HPI Electrical Data/Timing:

Table 6-35, Timing Requirements for Host-Port Interface Cycles:

Deleted parameters 9,10, 16, 17, and 19

Updated/Changed parameter 13 from "Hold time, HSTROBE low after..." to "Hold time, HSTROBE high

after..."

Deleted "HPI Read Timing (HAS Used)" figure

Deleted "HPI Write Timing (HAS Used)" figure

Section 6.13.1.1

Section 6.13.1.1, McBSP Electrical Data/Timing

Table 6-38, Timing Requirements for McBSP

Updated/Changed th(CKRL-FRH) CLKR ext MIN value from "3 ns" to "4 ns"

Updated/Changed th(CKRL-DRV) CLKR ext MIN value from "3 ns" to "3.5 ns"

Table 6-39, Switching Characteristics Over Recommended Operating Conditions for McBSP

Updated/Changed tw(CKRX) CLKR/X int MIN and MAX values from C-1 and C+1 to C-2 and C+2

Updated/Changed td(FXH-DXV) FSX int MIN value from "-3.9 ns" to "-4 ns"

Updated/Changed td(FXH-DXV) FSX ext MIN and MAX values from "-2.1 ns" and "5 ns"to "+1 ns" and "14.5

ns"

Section 6.14.1.2

Section 6.14.1.2, McASP0 Peripheral Register Description(s)

Table 6-49, McASP0 Control Registers:

Updated/Changed Serializer 0 control register (SRCTL0) HEX ADDRESS RANGE from 01B4 C180 to

01D0 1180.

Section 6.14.1.3, McASP0 Electrical Data/Timing

Table 6-51, Timing Requirements for McASP:

Updated/Changed tsu(FRX-CKRX) ACLKR/X int MIN value from "10 ns" to "11 ns"

Updated/Changed tsu(AXR-CKRX) ACLKR/X int MIN value from "10 ns" to "11 ns"

Added ACLKR/X "ext input" and "ext output" values to th(CKRX-FRX)

Added ACLKR/X "ext input" and "ext output" values to th(CKRX-AXR)

Table 6-52, Switching Characteristics Over Recommended Operating Conditions for McASP

Added ACLKR/X "ext input" and "ext output" values to td(CKRX-FRX)

Added ACLKR/X "ext input" and "ext output" values to td(CKX-AXRV)

Table 6-42, Switching Characteristics Over Recommended Operating Conditions for McBSP as SPI

Master or Slave: CLKSTP = 10b, CLKXP = 0

Updated/Changed td(FXL-CKXH) MIN value from "L - 2 ns" to "L - 4 ns"

Updated/Changed table note from "...input clock = P if CLKSM = 1..." to "...input clock = 2P if CLKSM =

1..."

Updated/Changed table note from "...input clock = P_clks if CLKSM = 0..." to "...input clock = 2*P_clks if

CLKSM = 0..."

Table 6-42, Switching Characteristics Over Recommended Operating Conditions for McBSP as SPI

Master or Slave: CLKSTP = 11b, CLKXP = 0

Updated/Changed td(FXL-CKXH) MIN value from "T - 2 ns" to "T - 4 ns"

Updated/Changed td(FXL-DXV) MIN/ MAX values from "H - 2 ns"/ "H + 4 ns" to "H - 4 ns"/ "H + 5.5 ns"

Updated/Changed table note from "...input clock = P if CLKSM = 1..." to "...input clock = 2P if CLKSM =

1..."

Updated/Changed table note from "...input clock = P_clks if CLKSM = 0..." to "...input clock = 2*P_clks if

CLKSM = 0..."

Table 6-42, Switching Characteristics Over Recommended Operating Conditions for McBSP as SPI

Master or Slave: CLKSTP = 10b, CLKXP = 1

Updated/Changed td(FXL-CKXL) MIN/ MAX values from "H - 2 ns"/ "H + 3 ns" to "H - 4 ns"/ "H + 4 ns"

Updated/Changed table note from "...input clock = P if CLKSM = 1..." to "...input clock = 2P if CLKSM =

1..."

Updated/Changed table note from "...input clock = P_clks if CLKSM = 0..." to "...input clock = 2*P_clks if

CLKSM = 0..."

Table 6-42, Switching Characteristics Over Recommended Operating Conditions for McBSP as SPI

Master or Slave: CLKSTP = 11b, CLKXP = 1

Updated/Changed td(FXL-CKXL) MIN/ MAX values from "T - 2 ns"/ "T + 1 ns" to "T - 4 ns"/ "T + 4 ns"

Updated/Changed table note from "...input clock = P if CLKSM = 1..." to "...input clock = 2P if CLKSM =

1..."

Updated/Changed table note from "...input clock = P_clks if CLKSM = 0..." to "...input clock = 2*P_clks if

CLKSM = 0..."

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