Fujitsu MB88121 Application Note page 35

3.1.4.1.1 Multiplexed mode port function register setting
Using Multiplexed mode lower pin count is required because of Multiplexed address-
data bus usage. In Multiplexed mode ASX signal is required. Find the different port
function setting below:
;====================================================
; 4.9.10 Select External bus mode (Address lines)
;====================================================
#set PFUNC6 B'00000000
; ||||||||__ A8 /
; |||||||___ A9 /
; ||||||____ A10 /
; |||||_____ A11 /
; ||||______ A12 /
; |||_______ A13 /
; ||________ A14 /
; |_________ A15 /
#set PFUNC7 B'00000000
; ||||||||__ A0 /
; |||||||___ A1 /
; ||||||____ A2 /
; |||||_____ A3 /
; ||||______ A4 /
; |||_______ A5 /
; ||________ A6 /
; |_________ A7 /
#set PFUNC10 B'00011010
; |||||||__ (SYSCLK or !SYSCLK) / P10_0
; ||||||___
; |||||____ BAAX / P10_2
; ||||_____
; |||______
; ||_______ (MCLKI or !MCLKI) / P10_5
; |________ MCLKE / P10_6
© Fujitsu Microelectronics Europe GmbH
Interfacing MB91460 TO MB88121
Chapter 3 Software
;select address lines
P06_0
P06_1
P06_2
P06_3
P06_4
P06_5
P06_6
P06_7
;select address lines
P07_0
P07_1
P07_2
P07_3
P07_4
P07_5
P07_6
P07_7
;select control signals
ASX / P10_1
WEX / P10_3
(MCLKO or !MCLKO)
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/ P10_4
MCU-AN-300016-E-V10