AN2136SC Cypress Semiconductor Corp, AN2136SC Datasheet - Page 86

• Manufacturer Part Number: AN2136SC
• Description: IC MCU 8051 8K RAM 24MHZ 44QFP
• Manufacturer: Cypress Semiconductor Corp
• Series: EZ-USB®r

Specifications of AN2136SC

• 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: 8
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 44-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1309

One or more data records follow, starting at EEPROM address 7. The maximum value of
Length H is 0x03, allowing a maximum of 1,023 bytes per record. Each data record con-
sists of a length, a starting address, and a block of data bytes. The last data record must
have the MSB of its Length H byte set to 1. The last data record consists of a single-byte
load to the CPUCS register at 0x7F92. Only the LSB of this byte is significant—
8051RES (CPUCS.0) is set to zero to bring the 8051 out of reset.
Serial EEPROM data can be loaded into two EZ-USB RAM spaces only.
Three EZ-USB control bits in the USBCS (USB Control and Status) register control the
ReNumeration
EZ-USB TRM v1.9
USBCS
VID/PID/DID in a “B2” EEPROM
Bytes 1-6 of a B2 EEPROM can be loaded with VID/PID/DID bytes if it is desired at
some point to run the 8051 program with ReNum=0 (EZ-USB core handles device
requests), using the EEPROM VID/PID/DID rather than the Cypress Semiconductor val-
ues built into the EZ-USB core.
5.9
WAKESRC
•
•
R/W
b7
0
8051 program/data RAM at 0x0000-0x1B40.
The CPUCS register at 0x7F92 (only bit 0, 8051 RESET, is host-loadable).
ReNumeration
b6
R
-
0
process: DISCON, DISCOE, and RENUM.
Figure 5-1. USB Control and Status Register
b5
R
0
-
USB Control and Status
Chapter 5. EZ-USB CPU
b4
R
0
-
DISCON
R/W
b3
0
DISCOE
R/W
b2
1
RENUM
R/W
b1
0
SIGRSUME
Page 5-11
R/W
b0
7FD6
0