MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 558
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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Instruction Format Summary
8.1.5 Destination Register Field
This field is common to all arithmetic instructions. It specifies the FPDR that that will be the
destination. The results are always stored in this register.
8.1.6 Conditional Predicate Field
This field is common to all conditional instructions and specifies the conditional test that is
to be evaluated. Table 8-1 shows the binary encodings for the conditional tests.
8.1.7 Shift and Rotate Instructions
The following paragraphs define the fields used with the shift and rotate instructions.
8.1.7.1 Count Register Field. If i/r = 0, this field contains the rotate (shift) count of 1 – 8 (a
zero specifies 8). If i/r = 1, this field specifies a data register that contains the rotate (shift)
count. The following shift and rotate fields are encoded as follows:
8.1.7.2 Register Field. This field specifies a data register to be rotated (shifted).
8-2
dr field
i/r field
0 — Rotate (shift) Right
1 — Rotate (shift) Left
0 — Immediate Rotate (shift) Count
1 — Register Rotate (shift) Count
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
MOTOROLA
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