FT313HL-R FTDI, FT313HL-R Datasheet - Page 15

• Manufacturer Part Number: FT313HL-R
• Description: USB Interface IC USB High Speed USB Host Controller IC
• Manufacturer: FTDI

Specifications of FT313HL-R

• Rohs: yes
• Product: USB 2.0
• Data Rate: 480 Mbps
• Interface Type: USB
• Operating Supply Voltage: 1.62 V to 3.63 V
• Operating Supply Current: 35 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP-64
• Minimum Operating Temperature: - 40 C

General
Multiplex 16-bit
Table 4-1 Bus Configuration modes
SRAM mode
AD[15:0]
A[7:0]
-
CS_N
RD_N/RE_N
WR_N/WE_N
INT
DREQ
DACK
Table 4-2 Pin information of the bus interface
4.2 SRAM bus interface mode
The bus interface will be in SRAM 16-bit mode if pins ALE/ADV_N and CLE are HIGH, when:
Then, if the DATA_BUS_WIDTH bit is set, the bus interface will be in SRAM 8-bit mode.
In SRAM mode, A[7:0] is the 8-bit address bus and AD[15:0] is the separate 16-bit data bus.
The FT313H pins RD_N /RE_N/OE_N and WR_N/WE_N are the read and write strobes. The
SRAM bus interface supports both 8-bit and 16-bit bus width that can be configured by setting
or clearing bit DATA_BUS_WIDTH. The DMA transfer is also applicable to this interface.
Bus Mode
•
The CS_N/CE_N pin goes LOW, and the RD_N /RE_N/OE_N pin goes LOW.
ALE/ADV_N
Copyright © 2012 Future Technology Devices International Limited
NOR mode
AD[15:0]
-
ADV_N
CS_N
OE_N
WE_N
INT
-
-
LOW
HIGH
CLE
General
Multiplex
mode
AD[15:0]
-
ALE
CS_N
RD_N/RE_N
WR_N/WE_N
INT
DREQ
DACK
FT313H USB2.0 HS Host Controller Datasheet Version 1.1
DATA_BUS
_WIDTH
0
Type
I/O
I
I
I
I
I
O
O
I






select: control signals
DACK: DMA acknowledge input
DREQ: DMA request output
AD[15:0]: 16-bit data bus
ALE, write(WR_N), read(RD_N), chip
select: control signals
DACK: DMA acknowledge input
DREQ: DMA request output
Description
Data or address bus
Address bus
Address or command valid
Chip select
Read control
Write control
Interrupt request
DMA request
DMA acknowledge
Document No.: FT_000589
Signal Description
Clearance No.: FTDI# 318
15