VRS51C1100-40-Q-ISPV2 Cypress Semiconductor, VRS51C1100-40-Q-ISPV2 Datasheet - Page 7

• Manufacturer Part Number: VRS51C1100-40-Q-ISPV2
• Description: 8-bit Microcontrollers - MCU 128K+1K 40MHz 5V
• Manufacturer: Cypress Semiconductor

Specifications of VRS51C1100-40-Q-ISPV2

• Product Category: 8-bit Microcontrollers - MCU
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 40 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 1 KB
• Operating Supply Voltage: 4.5 V to 5.5 V
• Package / Case: QFP-44
• Mounting Style: SMD/SMT
• Data Rom Size: 128 B
• Interface Type: UART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 36
• Number Of Timers: 3
• Program Memory Type: Flash
• Factory Pack Quantity: 96
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 4.5 V

An alternate way to force the VRS51C1100 to jump to
the ISP boot program is to maintain pins P2.6 and P2.7
or pin P4.3 at a low logic level during a hardware reset,
as shown in the diagram below:
F
The ISP boot program can also be accessed via the
LJMP instruction.
When the ISP page configuration is set to 0 while the
device
programmer, the ISP boot feature will be disabled.
______________________________________________________________________________________________
www.ramtron.com
IGURE
VRS51C1100
P2.7
P2.6
P4.3
RES
RES
OR...
4: VRS51C1100 A
is
being
LTERNATE
programmed
ISP
10ms
10ms
BOOT PROGRAM ACCESS
with
10ms
10ms
a
parallel
VRS51C1100 ISPVx Firmware Boot Program
An ISP boot loader program is available for the
VRS51C1100. (ISPVx Firmware, x = revision, see
Ramtron website for latest revision) that resides in
locations F200h to FFFFh in the upper 3.5KB of the
VRS51C1100 Program Flash memory. The ISPVx
Firmware enables In-System-Programming of the
VRS51C1100 on the final application PCB using the
UART interface.
The VRS51C1100 can be ordered with or without the
ISPVx
information section of this datasheet for part number
information).
See the following figure for a hardware configuration
example. Other configurations are also possible.
F
Visit the Ramtron web site to download the “Versa
Ware ISP” Window™’s application, which enables
communication with the ISPVx firmware.
The
programmed into the VRS51C1000 by the user.
Source code is included with the Versa Ware ISP
application software.
For more information on the ISPVx firmware, please
consult the “VRS51C1100 ISPVx Firmware User
Guide.pdf,” available on the Ramtron web site.
Note: The current ISPVx firmware and Versa Ware
software does not allow VRS51C1100 Data Flash
programming. Future versions of both will provide
support for VRS51C1100 Data Flash programming.
To PC
IGURE
5: VRS51C1100 I
ISPVx
bootloader
150k
bootloader
NTERFACE FOR
firmware
PNP
I
N
-S
YSTEM
firmware
Creset
Rreset
P
ROGRAMMING
(see
can
the
page 7 of 50
RXD
RES
TXD
VRS51C1100
(with ISPV2
Firmware)
also
ordering
be