Fujitsu F2MC-16LX Hardware Manual page 179

I Operation of external pins in each mode
Table 7.3-4 "Operation of external pins in each mode" shows the operation of each external pin
in the non-multiplex mode and multiplex mode.
Table 7.3-4 Operation of external pins in each mode
Permitted (address)
External bus extension External bus extension
8-bit
P07 to P00
/D07 to D00
/AD07 to AD00
P17 to P10
/D15 to D08 Port
/AD15 to AD08
P27 to P20 A23 to A16
P37 to P30 A07 to A00
P47 to P40 A15 to A08
ALE
RD
P52/WRL
P53/WRH Port
P54/HRQ
P55/HAK
P56/RDY
P57/CLK
• In the single-chip mode, all addresses can be used as ports.
• High-order addresses, WRL, WRH, HAK, HRQ, RDY, and CLK can be used as ports depending on the selected function.
• In the multiplex mode, high-order addresses ranging from A23 to A20 can be used as ports or as the range of PPG3 to PPG0.
• In the non-multiplex mode, the up/down-counter, SCI2, and
Non-multiplex mode
External address control
Prohibited (port)
16-bit 8-bit
D07 to D00
D15 to D08 Port D15 to D08 A15 to A08 AD15 to AD08 A15 to A08 AD15 to AD08
Port
A07 to A00
A15 to A08
ALE
RD
WRL
WRH Port
HRQ
HAK
RDY
CLK
Functions
External address control
Permitted (address)
External bus extension
16-bit 8-bit 16-bit
A23 to A16
WRH Port WRH
µ
PG cannot be used. They function as addresses.
CHAPTER 7 MODE SETTING
Multiplex mode
Prohibited (port)
External bus extension
8-bit 16-bit
AD07 to AD00
Port
Port
ALE
RD
WRL
Port WRH
HRQ
HAK
RDY
CLK
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