mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 1182

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

Application Information
00562: c0bc 0000 fff5
00568: 1080
0056a: 4cd7 008c
0056e: 4fef 000c
00572: 4e75
The resulting SPI performance, as measured in the effective Mbps transmission rate for
the 16-bit message, is shown in the following table.
1182
CPU f = 50 MHz
SPI Speed @
2.063 Mbps
Peripheral Bus-mapped GPIO
Table 45-13. Emulated SPI Performance using GPIO Outputs
MCF51JF128 Reference Manual, Rev. 2, 03/2011
and.l
mov.b
movm.l
lea
rts
Relative
Speed
1.00x
&0xfff5,%d0
%d0,(%a0)
(%sp),&0x8c
12(%sp),%sp
Preliminary
CPU f = 50 MHz
SPI Speed @
3.809 Mbps
# negate chip-select
# update gpio
# restore d2,d3,d7
# deallocate stack space
RGPIO
Freescale Semiconductor, Inc.
Relative
Speed
1.29x