Enhanced Modular Input/Output Subsystem (eMIOS)
MPC5565 Microcontroller Reference Manual, Rev. 1.0
Freescale Semiconductor
16-23
The four components of the eMIOS module are:
•
Bus interface unit
•
STAC client submodule
•
Global clock prescaler
•
Unified channels and their modes of operation
16.4.1
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.
16.4.1.1
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.
16.4.2
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 16-13. STAC Client Submodule Server Slot Assignment
Engine
Time Base
Server ID
1
TCR1
0
1
TCR2
2
2
TCR1
1
2
TCR2
3
Содержание MPC5565
Страница 18: ...MPC5565 Microcontroller Reference Manual Devices Supported MPC5565 MPC5565 RM Rev 1 0 09 2007...
Страница 34: ...MPC5565 Reference Manual Rev 1 0 Freescale Semiconductor 15...
Страница 35: ...MPC5565 Reference Manual Rev 1 0 16 Freescale Semiconductor...
Страница 325: ...Error Correction Status Module ECSM MPC5565 Microcontroller Reference Manual Rev 1 0 8 16 Freescale Semiconductor...
Страница 515: ...External Bus Interface EBI MPC5565 Microcontroller Reference Manual Rev 1 0 12 70 Freescale Semiconductor...
Страница 553: ...Flash Memory MPC5565 Microcontroller Reference Manual Rev 1 0 13 38 Freescale Semiconductor...
Страница 559: ...SRAM MPC5565 Microcontroller Reference Manual Rev 1 0 14 6 Freescale Semiconductor...
Страница 577: ...Boot Assist Module BAM MPC5565 Microcontroller Reference Manual Rev 1 0 15 18 Freescale Semiconductor...
Страница 895: ...Deserial Serial Peripheral Interface DSPI MPC5565 Microcontroller Reference Manual Rev 1 0 19 72 Freescale Semiconductor...
Страница 973: ...Preface MPC5565 Microcontroller Reference Manual Rev 1 0 21 36 Freescale Semiconductor...
Страница 1145: ...MPC5565 Register Map MPC5565 Microcontroller Reference Manual Rev 1 0 A 60 Freescale Semiconductor...
Страница 1153: ...Calibration MPC5565 Microcontroller Reference Manual Rev 1 0 B 8 Freescale Semiconductor...