mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 300

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

Memory Map and Registers
13.2.6 System Options Register 6 (SIM_SOPT6)
Address: SIM_SOPT6 is FFFF_80C0h base + 5h offset = FFFF_80C5h
300
MTBASE1
MODTX1
F1ECS
F0ECS
RX1IN
MBSL
Field
Reset
Field
Read
7–6
5–4
Write
1
0
3
2
Bit
FTM1 external clock select
0
1
FTM0 external clock select
0
1
Mini-FlexBus security level
If flash security is enabled, this field affects what CPU operations can access off-chip via the Mini-FlexBus
interface. This field has no effect if security is not enabled.
0x
10
11
UART1 TX modulation time base select
00
01
10
11
UART1 RX input pin selection
0
1
Modulate T
0
1
7
0
TMR_CLKIN0
TMR_CLKIN1 (reset value)
TMR_CLKIN0 (reset value)
TMR_CLKIN1
RX1 is fed from the digital input pin (assuming the RX1 is enabled on that pin via the mux pin
registers) (reset value)
RX1 is fed from the CMP output
Do not modulate the output of UART1 (reset value)
Modulate the output of UART1 with the timebase selected via the MTBASE1 field
MBSL
All off-chip accesses (opcode and data) by the Mini-FlexBus are disallowed (reset value: 00)
Off-chip opcode accesses are disallowed. Data accesses are allowed.
Off-chip op code accesses and data accesses are allowed.
FTM0 Ch0 (reset value)
FTM0 Ch1
FTM1 Ch0
MTIM
SIM_SOPT5 field descriptions (continued)
0
6
MCF51JF128 Reference Manual, Rev. 2, 03/2011
SIM_SOPT6 field descriptions
Table continues on the next page...
0
5
MTBASE1
Preliminary
0
4
Description
Description
RX1IN
0
3
MODTX1
0
2
Freescale Semiconductor, Inc.
PTF6PAD
0
1
PTC5PAD
0
0