
DSP56F805/D
Rev. 12.0
, 
02/2004
 Motorola, Inc., 2004. All rights reserved.
56F805
Technical Data
56F805 16-bit Hybrid Controller
Up to 40 MIPS at 80MHz core frequency
DSP and MCU functionality in a unified, 
C-efficient architecture
Hardware DO and REP loops
MCU-friendly instruction set supports both 
DSP and controller functions: MAC, bit 
manipulation unit, 14 addressing modes
31.5K 
×
 16-bit words Program Flash 
512 
×
 16-bit words Program RAM
4K 
×
 16-bit words Data Flash
2K 
×
 16-bit words Data RAM
2K 
×
 16-bit words Boot Flash
Up to 64K 
×
 16-bit words each of external 
Program and Data memory
Two 6-channel PWM Modules
Two 4-channel, 12-bit ADCs
Two Quadrature Decoders
CAN 2.0 B Module
Two Serial Communication Interfaces (SCIs)
Serial Peripheral Interface (SPI)
Up to four General Purpose Quad Timers
JTAG/OnCE
TM
 port for debugging
14 Dedicated and 18 Shared GPIO lines
144-pin LQFP Package
Figure 1. 56F805 Block Diagram
JTAG/
OnCE 
Port
Digital Reg
Analog Reg
Low Voltage
Supervisor
Program Controller
and
Hardware Looping Unit
Data ALU
16 x 16 + 36 
→
 36-Bit MAC
Three 16-bit Input Registers
Two 36-bit Accumulators
Address 
Generation 
Unit
Bit 
Manipulation
 Unit
PLL
Clock Gen
16-Bit
56800
Core
PAB
PDB
XDB2
CGDB
XAB1
XAB2
XTAL
EXTAL
INTERRUPT 
CONTROLS
IPBB
 CONTROLS
IPBus Bridge 
(IPBB)
MODULE CONTROLS
ADDRESS BUS [8:0]
DATA BUS [15:0]
COP RESET
RESET
IRQA
IRQB
Application-
Specific 
Memory &
Peripherals
Interrupt 
Controller
Program Memory
32252 x 16 Flash
512 x 16 SRAM
Boot Flash
2048 x 16 Flash
Data Memory
4096 x 16 Flash
2048 x 16 SRAM
COP/
Watchdog
SPI
or
GPIO
Dedicated
GPIO
*
includes TCS pin which is reserved for factory use and is tied to
VSS
SCI0
or
GPIO
Quad Timer D
/ Alt Func
Quad Timer C
A/D1
A/D2
VREF
ADC
4
2
4
4
4
4
6
PWM Outputs
Fault Inputs
PWMA
16
16
VCAPC
V
DD
V
SS
V
DDA
V
SSA
6
2
8
8*
EXTBOOT
Current Sense Inputs
3
Quadrature
Decoder 0/
Quad Timer A
CAN 2.0A/B
2
 CLKO
External
Address Bus
Switch
External
Data Bus
Switch
Bus
Control
External
Bus
Interface
Unit
RD Enable
WR Enable
DS Select
PS Select
10
16
6
A[00:05]
A[06:15] or
GPIO-E2:E3 &
GPIO-A0:A7
D[00:15]
4
4
6
PWM Outputs
Fault Inputs
PWMB
Current Sense Inputs
3
Quadrature
Decoder 1/
Quad B Timer
4
2
SCI1
or
GPIO
2
14
VPP
RSTO
F
Freescale Semiconductor, Inc.
For More Information On This Product,
  Go to: www.freescale.com
n
.