MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 531
MC68EC000EI20
Manufacturer Part Number
MC68EC000EI20
Description
IC MPU 32BIT 20MHZ 68-PLCC
Manufacturer
Freescale Semiconductor
Specifications of MC68EC000EI20
Processor Type
M680x0 32-Bit
Speed
20MHz
Voltage
3.3V, 5V
Mounting Type
Surface Mount
Package / Case
68-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
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PTEST
MOTOROLA
Level field—Specifies the depth to which the translation table should be searched.
FC field—Function code of address to test.
R/W field—Specifies whether the A-bit should be updated for a read or a write.
A-Register field—Specifies the address register in which to load the last descriptor
1—Read
0—Write
address.
1DDDD — Function code is specified as four bits DDDD.
01RRR — Function code is contained in CPU data register RRR.
00000 — Function code is contained in CPU source function code register.
00001 — Function code is contained in CPU destination function code
1RRR — Return the last descriptor address to address register RRR.
When the PTEST instruction specifies a level of zero, the A-
register field must be 0000. Otherwise, an F-line exception is
generated.
0xxx — Do not return the last descriptor address to an address register.
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
Get Information About Logical Address
register.
(MC68851)
NOTE
Supervisor (Privileged) Instructions
PTEST
6-77
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