參數資料
型號: MC68EC060RC66
廠商: Freescale Semiconductor
文件頁數: 59/128頁
文件大?。?/td> 0K
描述: IC MPU 32BIT 66MHZ 206-PGA
標準包裝: 10
系列: M680x0
處理器類型: M680x0 32-位
速度: 66MHz
電壓: 3.3V
安裝類型: 通孔
封裝/外殼: 206-BEPGA
供應商設備封裝: 206-PGA(47.25x47.25)
包裝: 托盤
Introduction
1-12
M68060 USER’S MANUAL
MOTOROLA
modifying the S-bit of the SR. After these instructions execute, the instruction pipeline is
flushed and is refilled from the appropriate address space.
The MC68060 integrates the functions of the integer unit, FPU, and MMU. The registers
depicted in the programming model (see Figure 1-2) provide operand storage and control
for these three units. The registers are partitioned into two levels of privilege modes: user
and supervisor. The user programming model is the same as the user programming model
of the MC68040, which consists of 16 general-purpose 32-bit registers, two control regis-
ters, eight 80-bit floating-point data registers, a floating-point control register, a floating-point
status register, and a floating-point instruction address register.
Only system programmers can use the supervisor programming model to implement oper-
ating system functions, I/O control, and memory management subsystems. This supervisor/
Figure 1-2. Programming Model
SUPERVISOR PROGRAMMING MODEL
USER PROGRAMMING MODEL
CCR
PC
A7/USP
A6
A5
A4
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
31
0
DATA
REGISTERS
ADDRESS
REGISTERS
31
0
79
0
FP0
FP1
FP2
FP3
FP4
FP5
FP6
FP7
FPCR
FPSR
FPIAR
FLOATING-POINT
DATA
REGISTERS
FP CONTROL REGISTER
FP STATUS REGISTER
FP INSTRUCTION ADDRESS REGISTER
31
0
PCR
A7/SSP
SR
VBR
SFC
DFC
CACR
URP
SRP
TC
DTT0
DTT1
ITT0
ITT1
BUSCR
(CCR)
PROGRAM COUNTER
CONDITION CODE REGISTER
PROCESSOR CONFIGURATION REGISTER
SUPERVISOR STACK POINTER
STATUS REGISTER (CCR IS ALSO SHOWN IN THE USER PROGRAMMING MODEL)
VECTOR BASE REGISTER
SOURCE FUNCTION CODE
DESTINATION FUNCTION CODE
CACHE CONTROL REGISTER
USER ROOT POINTER REGISTER
SUPERVISOR ROOT POINTER REGISTER
TRANSLATION CONTROL REGISTER
DATA TRANSPARENT TRANSLATION REGISTER 0
DATA TRANSPARENT TRANSLATION REGISTER 1
INSTRUCTION TRANSPARENT TRANSLATION REGISTER 0
INSTRUCTION TRANSPARENT TRANSLATION REGISTER 1
BUS CONTROL REGISTER
USER STACK POINTER
15
0
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