SAF-XC164GM-8F20F INFINEON [Infineon Technologies AG], SAF-XC164GM-8F20F Datasheet - Page 19

• Manufacturer Part Number: SAF-XC164GM-8F20F
• Description: 16-Bit Single-Chip Microcontroller with C166SV2 Core
• Manufacturer: INFINEON [Infineon Technologies AG]

3.2
The main core of the CPU consists of a 5-stage execution pipeline with a 2-stage
instruction-fetch pipeline, a 16-bit arithmetic and logic unit (ALU), a 32-bit/40-bit multiply
and accumulate unit (MAC), a register-file providing three register banks, and dedicated
SFRs. The ALU features a multiply and divide unit, a bit-mask generator, and a barrel
shifter.
Figure 3-2
Based on these hardware provisions, most of the XC164GM’s instructions can be
executed in just one machine cycle which requires 25 ns at 40 MHz CPU clock. For
Data Sheet
CP U
M AC
P refe tch
M u ltip ly
B ra nch
F IF O
ID X 0
ID X 1
M A H
Q X 0
Q X 1
U nit
U nit
U nit
+ /-
+ /-
Central Processing Unit (CPU)
CPU Block Diagram
C S P
C P U C O N 1
C P U C O N 2
R etu rn
M R W
M C W
M S W
M A L
S tack
Q R 0
Q R 1
+ /-
IP
IFU
D ivisio n U n it
M u ltip ly U nit
ZE R O S
D P P 0
D P P 1
D P P 2
D P P 3
P S W
M D C
M D H
E xception
Injection/
V E C S E G
H andler
T FR
B it-M a sk-G en .
B arrel-S h ifter
17
S P S E G
S TK O V
S TK U N
O N E S
M D L
S P
+ /-
ADU
ALU
RF
DM U
PM U
G P R s
2-S tag e
R 1 5
R 1 4
5-S ta ge
G P R s
R 1
R 0
B uffer
R 15
R 14
P re fetch
R 1
R 0
P ip elin e
C P
G P R s
R 1 5
R 1 4
P ip eline
R 1
R 0
IP IP
W B
Functional Description
Peripherals
Flash/RO M
m ca04917_x.vsd
PSR AM
DPRA M
DSRA M
Derivatives
V1.0, 2005-11
EBC
G P R s
XC164GM
R 1 5
R 1 4
R 1
R 0