MC68MH360ZP25VL Freescale Semiconductor, MC68MH360ZP25VL Datasheet - Page 111

• Manufacturer Part Number: MC68MH360ZP25VL
• Description: IC MPU QUICC ETHER 25MHZ 357PBGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68MH360ZP25VL

• Processor Type: M683xx 32-Bit
• Speed: 25MHz
• Voltage: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 357-PBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -

Chapter 8
Performance
80
80
Calculating performance is key to choosing the clock frequency required for a given
system. For the 860MH and MH360, the large number of possible channel combinations
complicates performance estimation.
This chapter addresses the problem by first providing a performance table for common
configurations supported by the 860MH and/or the MH360 in Section 8.1, “Common
Channel Combinations.” For configurations not covered in the first section, Section 8.2,
“CPM Loading,” covers general guidelines and examples for determining the serial bit rate
and CPM loading on a given system. The final section, Section 8.3, “Bus Latency and Peak
Load,” addresses system bus utilization and arbitration.
For more definitive answers to performance questions, benchmark the desired
configuration on a development board.
8.1 Common Channel Combinations
Table 8-1 provides some common channel combinations configured on the MH devices
along with suggested operating frequencies. Note that the MH360 is available only at 25
and 33 MHz,; the 860MH is currently available at 25, 40, and 50 MHz.
SCC1: 24-channel QMC. Serial bit rate 1.544 Mbps (T1)
SCC1: 32-channel QMC.
Serial bit rate 2.048 Mbps (E1/CEPT)
SCC1: 10-Mbps Ethernet; SCC2: 12 x 64-Kbps QMC;
SCC3: 12 x 64-Kbps QMC. TDM bit rate = 1.544 Mbps
SCC1: 10-Mbps Ethernet; SCC2: 16 x 64-Kbps QMC;
TDM bit rate = 1.544 Mbps
SCC1: 32 x 64-Kbps QMC; SCC2: 64 Kbps;
SCC3:64 Kbps; SCC4: 64 Kbps; all HDLC.
Protocols Selected
Freescale Semiconductor, Inc.
For More Information On This Product,
Table 8-1. Common QMC Configurations
Go to: www.freescale.com
Chapter 8. Performance
25 MHz
Yes
Yes
Yes
Yes
Yes
Frequency Supported
33 MHz
Yes
Yes
Yes
Yes
Yes
40 MHz
Yes
Yes
Yes
Yes
Yes
50 MHz
Yes
Yes
Yes
Yes
Yes