Document No.: FT_000589
FT313H USB2.0 HS Host Controller Datasheet Version 1.1
Clearance No.: FTDI# 318
7.1.3 16-Bit NOR asynchronous bus interface
FT313H
CS_E/CS_N
OE_N/RE_N/RD_N
WE_N/WR_N
AD<15:0>
A<7:0>
INT
ADV_N/ALE
INT
ADV_N
Microcontroller
CS_N
OE_N
WE_N
AD<15:0>
16-Bit NOR uses AD<15:0> signals as address and data bus. Unused A<7:0> address must be
terminated with external 10k ohm pull-down resistor.
If the microcontroller has no AD<0> pin for 16-bit wide devices, the unused AD<0> signal with must be
terminated with an external 10k ohm pull-down resistor.
7.1.4 8-Bit NOR asynchronous bus interface
FT313H
CS_E/CS_N
OE_N/RE_N/RD_N
WE_N/WR_N
AD<7:0>
A<7:0>
INT
ADV_N/ALE
INT
ADV_N
Microcontroller
CS_N
OE_N
WE_N
AD<7:0>
8-Bit NOR uses AD<7:0> signals as address and data bus. The unused high data bus AD<15:8> and
A<7:0> address bus must be terminated with external 10k ohm pull-down resistors.
7.1.5 16-Bit General Multiplex asynchronous bus interface
FT313H
CS_E/CS_N
OE_N/RE_N/RD_N
WE_N/WR_N
AD<15:0>
A<7:0>
INT
ADV_N/ALE
DACK
DREQ
INT
ALE
DACK
DREQ
Microcontroller
CS_N
RE_N
WE_N
AD<15:0>
16-Bit General Multiplex uses AD<15:0> signals as address and data bus. Unused A<7:0> address must
be terminated with external 10k ohm pull-down resistor.
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