Description
TMS320 SECOND-GENERATION Digital Signal Processors
 Function PIN
Signals Definition
PGA and PLCC/CER-QUAD PIN Assignments
 Introduction
 Bit-Reversed Indexed-Addressing Mode for
Key Features TMS32020
Memory Space
Wait States for Communication to Slower Off-Chip
 TMS320 Second-Generation Device Overview
Architecture
Package
Type
 SECOND-GENERATION Devices
Functional block diagram TMS320C2x
 Scaling shifter
Timer
16 ⋅ 16-bit parallel multiplier
Memory control
 Memory Maps
TMS320 SECOND-GENERATION Devices
 Multiprocessing
Interrupts and subroutines
External interface
 Addressing modes
Repeat feature
Instruction set
 Instruction set summary
Instruction Symbols
Symbol Definition
 TMS320C25 Instruction Set Summary
 XOR
SUBT²
XORK²
ZAC
 LPH ²
Apac
LTA
LTP ²
 Data Memory Operations Mnemonic Description Words
 TMS320C25 Instruction Set Summary concluded
 TMS32020 Product Notification
TMS32020
 Development support
 Hardware Tools Part Number
TMS320 Second-Generation Software and Hardware Support
Software Tools Part Number
 Documentation support
Specification overview
 Parameter Test Conditions MIN TYP§ MAX Unit
Recommended operating conditions
MIN NOM MAX Unit
 External clock option
Clock Characteristics and Timing
Internal clock option
 Test Load Circuit
 Parameter MIN TYP MAX Unit
Memory and Peripheral Interface Timing
 Hold Holda
RS, INT, BIO, and XF Timing
Hold Timing
 Serial Port Timing
 TMS320C25GBA
INT Clkin / Clkx / Clkr
MP/MC IOH
 Parameter Test Conditions MIN TYP MAX Unit
 Clkin
External Clock Option
 VOH Min
 TdC1L-AL Low after CLKOUT1 low
 Serial Port Timing
 See Notes 14
Eprom Programming
VPP
IPP1
 MP/MC VIL
INT0 INT2 VIH
CLKIN, CLKX, Clkr
 CLKOUT1, CLKOUT2
Internal Clock Option External clock option
 Fcrystal
 TdC1-S From Clkout if Is present
 TsuIN Setup before CLKOUT1 high
 Clock characteristics and timing
Contrast Summary of Electrical Specifications
Parameter
MIN TYP MAX
 RS, INT, BIO, and XF timing
Memory and peripheral interface timing
Hold timing
Serial port timing
 Clock timing
Timing Diagrams
 Ready
Memory read timing
BR, PS, D S
 CLKOUT1 CLKOUT2 Strb
Memory write timing
 MSC
One wait-state memory access timing
 Iack
Reset timing
 Interrupt timing TMS320C25
Interrupt timing TMS32020
 Serial port transmit timing
Serial port receive timing
 External flag timing
BIO timing
 PC = N PC = N +
 Hold
Hold timing part a
Holda
Execute
 Holda Fetch
Hold timing part B
CLKOUT1 CLKOUT2
 Fetch Execute
 Or is D15-D0 TdHH-AH
 TMS320C25FNL Plcc reflow soldering precautions
Typical Supply Current Characteristics for TMS320C25
 Parameter MAX Unit
Mechanical Data
Pin GB grid array ceramic package TMS32020, TMS320C25
 Advance
 Jedec NO. Outline Terminals MIN MAX
 Fast programming and verification
Programming the TMS320E25 Eprom cell
 VCC
Pin Nomenclature TMS320E25
EPT
EPT VPP
 Signal
TMS320E25 Programming Mode Levels
Program Read Output Name ² PIN Verify Inhibit Disable
Erasure
 Program verify
Fast Programming Flowchart
 ROM protection and verification
Output disable
Read
 Eprom protect
TMS320E25 Protect and Verify Eprom Mode Levels
VIH VIL PGM VPP VCC
VSS Clkin EPT VPP
 Rbit
Eprom
 VCC VIH VIL PGM VIH/VOH HI-Z VIL/VOL VPP EPT VSS
VIH VIL VPP VCC
 TMS320 SECOND-GENERATION
 NIL
 Other Qualified Versions of TMS320C25
Packaging Information
 Important Notice