AN2131QC Cypress Semiconductor Corp, AN2131QC Datasheet - Page 157

• Manufacturer Part Number: AN2131QC
• Description: IC MCU 8051 8K RAM 24MHZ 80BQFP
• Manufacturer: Cypress Semiconductor Corp
• Series: EZ-USB®r

Specifications of AN2131QC

• Applications: USB Microcontroller
• Core Processor: 8051
• Program Memory Type: ROMless
• Controller Series: AN213x
• Ram Size: 8K x 8
• Interface: I²C, USB
• Number Of I /o: 24
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1307

RMOD1-RMOD0 for read strobes and WMOD1-WMOD0 for write strobes, as shown in
Figure 8-11 (write) and Figure 8-12 (read).
8.7.1 Fast Write Waveforms
Page 8-12
Note
When using the fast transfer feature, be sure to enable the FRD# and FWR# strobe sig-
nals in the PORTACFG register.
F W R # [0 0 ]
F W R # [0 1 ]
F W R # [1 0 ]
F W R # [1 1 ]
F W R # [0 0 ]
F W R # [0 1 ]
F W R # [1 0 ]
F W R # [1 1 ]
C L K 2 4
D [7 ..0 ]
D [7 ..0 ]
4 1 .6 6 n s
tC L
N o te : If W P O L = 1 th e w a v e fo rm s a re in v e rte d
Figure 8-11. Fast Write Timing
[n n ] = W M 1 :W M 0 , W P O L = 0
Chapter 8. EZ-USB CPU
O utput
O u tp ut
s tre tc h = 0 0 0
s tre tc h = 0 0 0
s tre tc h = 0 0 0
s tre tc h = 0 0 0
s tre tc h = 0 0 0
s tre tc h = 0 0 1
s tre tc h = 0 0 1
s tre tc h = 0 0 1
s tre tc h = 0 0 1
s tre tc h = 0 0 1
EZ-USB TRM v1.9