UPD720122GC-9EU-A Renesas Electronics America, UPD720122GC-9EU-A Datasheet - Page 12

• Manufacturer Part Number: UPD720122GC-9EU-A
• Manufacturer: Renesas Electronics America

Specifications of UPD720122GC-9EU-A

• Lead Free Status / RoHS Status: Supplier Unconfirmed

them.
10
M1
RSDM
M(1:0)
VBUS
AV
V
AV
V
NC
Reserved
Note
Remark
0
0
1
1
DD
SS
The operation mode of the BIU can be set by external pins, as shown below. Fix external pins (M1 and M0) when using
Pin Name
DD
SS
Pin
, GND
, PV
, PV
M0
0
1
0
1
SS
DD
VBUS pin may be used to monitor for VBUS line even if V
ensure that the input voltage level for VBUS pin is less than 3.0 V due to the absolute maximum rating is not
exceeded.
“5 V tolerant“ means that the buffer is 3.3 V buffer with 5 V tolerant circuit.
BIU Operation Mode
Setting prohibited
16-bit mix mode
(Function 1)
(Function 2)
(Function 3)
(Function 4)
16-bit mode
8-bit mode
I/O
O
I
I
USB full speed D- O
5 V tolerant Input
5 V tolerant Input
Buffer Type
A 16-bit CPU bus and an external local bus dedicated to data transfer for bulk IN/OUT can be
used in this mode. The internal register length is 16 bits.
Multiplexed bus mode of 8-bit address bus and 8-bit data bus.
The register length is 8 bits only in this mode (registers can only be accessed in byte units).
Therefore, the address space in this mode differs from that in the other modes.
The active levels of some external local bus control pins can be changed by the Active pin.
Multiplexed bus mode of 8-bit address bus and 16-bit data bus.
The internal register length is 16 bits.
The active levels of some external local bus control pins can be changed by the Active pin.
Setting prohibited
Note
Data Sheet S16685EJ3V0DS
Active Level
USB’s full speed D− signal
Function mode setting
VBUS monitoring
3.3 V
3.3 V
V
V
Not connect
Not used
SS
SS
Outline
for Analog circuit
DD
DD
DD
for Analog circuit
, AV
DD
, and PV
Function
DD
are shut off. System must
µ
PD720122
(2/2)