Zilog Z8F0130 - Manual (Page 25)

eZ8
™
CPU Core
User Manual
UM012820-0810 Architectural Overview
10
Byte Ordering
For multibyte data, the eZ8 CPU stores the most significant byte in the
lowest memory address. For example, the value 1 can be stored as a 2-
byte (16-bit) number in Register Pair
122h and 123h . The value is stored
as 0001h . The most-significant byte ( 00h ) is stored in the lowest memory
address at 122h . The least-significant byte ( 01h ) is stored in the higher
memory address at 123h . This ordering of multibyte data is often referred
to as big endian.