User's Manual
Table Of Contents
- General Description
- Features
- System Applications
- Block Diagram
- Pin Assignments
- Pin Descriptions
- CPU Access to Endpoint Data
- USB Request
- Get Descriptor-Device
- Get Descriptor-Device Qualifier (High Speed)
- Get Descriptor-Configuration
- Get Descriptor-String Index 0
- Get Descriptor-String Index 1
- Get Descriptor-String Index 2
- Get Descriptor-String Index 3
- Get Descriptor-String Index 4
- Get Descriptor-String Index 5
- Get Descriptor-Other Speed Configuration
- Set Address
- Set Interface 0
- Set Feature Device
- Clear Feature Device
- Set Config 0
- Set Config 1
- EEPROM (93C46 or 93C56) Contents
- USB Packet Buffering
- Functional Description
- Application Diagram
- Electrical Characteristics
- Mechanical Dimensions
- Ordering Information
RTL8187L
Datasheet
Wireless LAN Network Interface Controller 33 Track ID JATR-1076-21 Rev. 1.2
13.3.
AC Characteristics
13.3.1. Serial EEPROM Interface Timing (93C46(64*16)/93C56(128*16))
EESK
EECS
EEDI
EEDO
110An A2 A0A1
Dn D1 D0
EESK
(Read)
(Write)
(Read)
(Write)
0
tcs
EESK
EECS
EEDI
EEDO
110AnA0
...
Dn
tcs
...
D0
BUSY READY
High Impedance
High Impedance
twp
EECS
EEDI
EEDO
EEDO
(Read)
(Program)
STATUS VALID
tsk
tskh
tskl
tcss
tdis tdih
tdos tdoh
tcsh
tsv
Figure 8. Serial EEPROM Interface Timing
Table 33. EEPROM Access Timing Parameters
Symbol Parameter Minimum Typical Maximum Units
tcs Minimum CS Low Time 9346/9356 1000/250 ns
twp Write Cycle Time 9346/9356 10/10 ms
tsk SK Clock Cycle Time 9346/9356 4/1 µs
tskh SK High Time 9346/9356 1000/500 ns
tskl SK Low Time 9346/9356 1000/250 ns
tcss CS Setup Time 9346/9356 200/50 ns
tcsh CS Hold Time 9346/9356 0/0 ns
tdis DI Setup Time 9346/9356 400/50 ns
tdih DI Hold Time 9346/9356 400/100 ns
tdos DO Setup Time 9346/9356 2000/500 ns
tdoh DO Hold Time 9346/9356 2000/500 ns
tsv CS to Status Valid 9346/9356 1000/500 ns