
Enhanced Modular Input/Output Subsystem (eMIOS)
MPC5566 Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor
17-23
The four components of the eMIOS module are:
•
Bus interface unit
•
STAC client submodule
•
Global clock prescaler
•
Unified channels and their modes of operation
17.4.1
Bus Interface Unit (BIU)
The bus interface unit provides the interface between the internal bus and the slave interface, allowing
communication among all submodules and the slave interface. The BIU allows 8-, 16-, and 32-bit
accesses. They are performed over a 32-bit data bus in a single cycle clock.
17.4.1.1
Effect of Freeze on the BIU
When the FRZ bit in the EMIOS_MCR is set and the module is in debug mode, the operation of the BIU
is not affected.
17.4.2
STAC Client Submodule
The shared time and angle count (STAC) bus provides access to one external time base, imported from the
STAC bus to the eMIOS unified channels. The eTPU module's time bases and angle count can be exported
and/or imported through the STAC client submodule interface. Time bases and/or angle information of
either eTPU engine can be exported to the other eTPU engine and to the eMIOS module, which is only a
STAC client. There are restrictions on engine export/import targets: one engine cannot export from or
import to itself, nor can it import time base and/or angle count if in angle mode.
The device’s STAC server identification assignment is shown in
. The time slot assignment is
fixed, so only time bases running at system clock divided by four or slower can be integrally exported. The
STAC client submodule runs with the system clock, and its time slot timing is synchronized with the eTPU
timing on reset. The time slot sequence is 0-1-2-3, such that they alternate between engines one and two.
Table 17-13. STAC Client Submodule Server Slot Assignment
Engine
Time Base
Server ID
1
TCR1
0
1
TCR2
2
2
TCR1
1
2
TCR2
3
Содержание MPC5566
Страница 12: ...MPC5566 Microcontroller Reference Manual Devices Supported MPC5566 MPC5566 RM Rev 2 0 23 Apr 2008...
Страница 81: ...Introduction MPC5566 Microcontroller Reference Manual Rev 2 1 24 Freescale Semiconductor...
Страница 135: ...Signal Description MPC5566 Microcontroller Reference Manual Rev 2 2 54 Freescale Semiconductor...
Страница 189: ...Reset MPC5566 Microcontroller Reference Manual Rev 2 4 20 Freescale Semiconductor...
Страница 331: ...System Integration Unit SIU MPC5566 Microcontroller Reference Manual Rev 2 6 128 Freescale Semiconductor...
Страница 343: ...Crossbar Switch XBAR MPC5566 Microcontroller Reference Manual Rev 2 7 12 Freescale Semiconductor...
Страница 361: ...Error Correction Status Module ECSM MPC5566 Microcontroller Reference Manual Rev 2 8 18 Freescale Semiconductor...
Страница 455: ...Interrupt Controller INTC MPC5566 Microcontroller Reference Manual Rev 2 10 42 Freescale Semiconductor...
Страница 603: ...Flash Memory MPC5566 Microcontroller Reference Manual Rev 2 13 38 Freescale Semiconductor...
Страница 609: ...SRAM MPC5566 Microcontroller Reference Manual Rev 2 14 6 Freescale Semiconductor...
Страница 679: ...Boot Assist Module BAM MPC5566 Microcontroller Reference Manual Rev 2 16 20 Freescale Semiconductor...
Страница 997: ...Deserial Serial Peripheral Interface DSPI MPC5566 Microcontroller Reference Manual Rev 2 20 72 Freescale Semiconductor...
Страница 1037: ...Enhanced Serial Communication Interface eSCI MPC5566 Microcontroller Reference Manual Rev 2 21 40 Freescale Semiconductor...
Страница 1073: ...MPC5566 Microcontroller Reference Manual Rev 2 22 36 Freescale Semiconductor...
Страница 1081: ...Voltage Regulator Controller VRC and POR Module MPC5566 Microcontroller Reference Manual Rev 2 23 8 Freescale Semiconductor...
Страница 1093: ...IEEE 1149 1 Test Access Port Controller JTAGC MPC5566 Microcontroller Reference Manual Rev 2 24 12 Freescale Semiconductor...
Страница 1185: ...Nexus MPC5566 Microcontroller Reference Manual Rev 2 25 92 Freescale Semiconductor...
Страница 1267: ...MPC5566 Reference Manual Revision History MPC5566 Microcontroller Reference Manual Rev 2 Freescale Semiconductor C 10...
Страница 1268: ...MPC5566 Reference Manual Revision History MPC5566 Microcontroller Reference Manual Rev 2 Freescale Semiconductor C 11...