CONTENTS
S1C17M20/M21/M22/M23/M24/M25
Seiko Epson Corporation
iii
TECHNICAL MANUAL (Rev. 1.0)
4.1 Overview ......................................................................................................................... 4-1
4.2 Bus Access Cycle ........................................................................................................... 4-1
4.3 Flash Memory ................................................................................................................. 4-2
5.4.3 Conditions to Accept Interrupt Requests by the CPU...................................... 5-4
5.5 NMI .................................................................................................................................. 5-4
5.6 Software Interrupts ......................................................................................................... 5-4
5.7 Interrupt Processing by the CPU .................................................................................... 5-5
5.8 Control Registers ............................................................................................................ 5-5
6.1 Overview ......................................................................................................................... 6-1
6.2 I/O Cell Structure and Functions ..................................................................................... 6-2