Freescale Semiconductor ColdFire MCF52210 - Manual (Page 324)

EzPort
MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2
19-2 Freescale Semiconductor
Figure 19-1 is a block diagram of the EzPort.
Figure 19-1. EzPort Block Diagram
19.3 External Signal Description
19.3.1 Overview
Table 19-1 contains a list of EzPort external signals.
19.3.2 Detailed Signal Descriptions
19.3.2.1 EZPCK — EzPort Clock
EzPort clock (EZPCK) is the serial clock for data transfers. Serial data in (EZPD) and chip select (EZPCS)
are registered on the rising edge of EZPCK while serial data out (EZPQ) is driven on the falling edge of
Table 19-1. Signal Descriptions
Name Description I/O
EZPCK EzPort Clock Input
EZPCS EzPort Chip Select Input
EZPD EzPort Serial Data In Input
EZPQ EzPort Serial Data Out Output
Flash
Controller
EzPort
Flash Memory
Microcontroller
Core
EzPort Enabled
EZPCS
EZPCK
EZPD
EZPQ
G
Reset Controller
Reset
Reset Out