Freescale MC56F8036 Kommunikation zwischen 2 uC

Hallo,

was wäre eine gute Kommunikations-Interface zwischen 2 Microcontroller?
2 Miocrocontroller (Freescale MC56F8036) sollen miteinander 
kommunitieren:
- datenübertragung soll schnell laufen
- möglichst geringer Aufwand

Wie bekomme ich raus, wie schnell die Daten übertagen werden? Kann man 
es irgendwie messen? (Hat ja nichts mit Bitrate zutun oder)

Folgende Interfaces werden vom Microcontroller unterstützt:

• One Queued Serial Communication Interface (QSCI) with LIN Slave 
functionality
— Full-duplex or single-wire operation
— Two receiver wake-up methods:
– Idle line
– Address mark
— Four-bytes-deep FIFOs are available on both transmitter and receiver
• One Queued Serial Peripheral Interfaces (QSPI)
— Full-duplex operation
— Master and slave modes
— Four-words-deep FIFOs available on both transmitter and receiver
— Programmable Length Transactions (2 to 16 bits)
• One Inter-Integrated Circuit (I2C) port
— Operates up to 400kbps
— Supports both master and slave operation
— Supports both 10-bit address mode and broadcasting mode
• One Freescale scalable controller area network (MSCAN) module
56F8036 Description
56F8036 Data Sheet, Rev. 4
Freescale Semiconductor 7
Preliminary
— Fully compliant with CAN protocol - Version 2.0 A/B
— Supports standard and extended data frames
— Supports data rate up to 1Mbps
— Five receive buffers and three transmit buffers