Zilog Z8F0130 Manuel d'utilisateur Page 25

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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.
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