PXD10RM Datasheet, PDF (465/1332 Pages) Freescale Semiconductor, Inc – PXD10 Microcontroller

14.2.1.1 Block diagram
OnCE/NEXUS
CONTROL LOGIC
CPU
CONTROL LOGIC
NEXUS
DEBUG
UNIT
LR
SPR
CR
CTR
XER
GPR
INSTRUCTION UNIT
INSTRUCTION BUFFER
PC BRANCH
UNIT UNIT
LOAD/
STORE
UNIT
INTEGER
EXECUTION
UNIT
MULTIPLY
UNIT
CONTROL
EXTERNAL
SPR
INTERFACE
(MTSPR/MFSPR)
DATA
DATA BUS INTERFACE UNIT
32
32
N
ADDRESS DATA
CONTROL
Figure 14-1. e200z0h block diagram
14.2.1.2 Instruction unit features
The features of the e200z0h Instruction unit are:
• 32-bit instruction fetch path supports fetching of one 32-bit instruction per clock, or up to two
16-bit VLE instructions per clock
• Instruction buffer with 4 entries in e200zh0, each holding a single 32-bit instruction, or a pair of
16-bit instructions
Freescale Semiconductor
PXD10 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
14-3