參數(shù)資料
型號： CY7C63803
廠商： Cypress Semiconductor Corp.
英文描述： enCoRe II Low-Speed USB Peripheral Controller(enCoRe II低速USB外設(shè)控制器)
中文描述： enCoRe II還低速USB外設(shè)控制器（enCoRe II還低速的USB外設(shè)控制器）
文件頁數(shù)： 16/74頁
文件大?。?/td> 1441K
代理商： CY7C63803
CY7C63310
CY7C638xx
Document 38-08035 Rev. *I
Page 16 of 74
The EraseAll function begins by erasing the user space of the
Flash macro with the highest address range. A bulk program
of all zeros is then performed on the same Flash macro, to
destroy all traces of the previous contents. The bulk program
is followed by a second erase that leaves the Flash macro in
a state ready for writing. The erase, program, erase sequence
is then performed on the next lowest Flash macro in the
address space if it exists. Following the erase of the user
space, the protection block for the Flash macro with the
highest address range is erased. Following the erase of the
protection block, zeros are written into every bit of the
protection table. The next lowest Flash macro in the address
space then has its protection block erased and filled with
zeros.
The end result of the EraseAll function is that all user data in
the Flash is destroyed and the Flash is left in an unpro-
grammed state, ready to accept one of the various write
commands. The protection bits for all user data are also reset
to the zero state
The parameter block values that must be set, besides the
keys, are the CLOCK and DELAY values.
9.5.7
The TableRead function gives the user access to part-specific
data stored in the Flash during manufacturing. It also returns
a Revision ID for the die (not to be confused with the Silicon
ID).
TableRead Function
The table space for the enCoRe II is simply a 64-byte row
broken up into eight tables of eight bytes. The tables are
numbered zero through seven. All user and hidden blocks in
the CY7C638xx parts consist of 64 bytes.
An internal table holds the Silicon ID and returns the Revision
ID. The Silicon ID is returned in SRAM, while the Revision ID
is returned in the CPU_A and CPU_X registers. The Silicon ID
is a value placed in the table by programming the Flash and is
controlled by Cypress Semiconductor Product Engineering.
The Revision ID is hard coded into the SROM. The Revision
ID is discussed in more detail later in this section.
An internal table holds alternate trim values for the device and
returns a one-byte internal revision counter. The internal
revision counter starts out with a value of zero and is incre-
mented each time one of the other revision numbers is not
incremented. It is reset to zero each time one of the other
revision numbers is incremented. The internal revision count
is returned in the CPU_A register. The CPU_X register will
always be set to FFh when trim values are read. The BLOCKID
value, in the parameter block, is used to indicate which table
should be returned to the user. Only the three least significant
bits of the BLOCKID parameter are used by TableRead
function for the CY7C638xx. The upper five bits are ignored.
When the function is called, it transfers bytes from the table to
SRAM addresses F8h–FFh.
The M8C’s A and X registers are used by the TableRead
function to return the die’s Revision ID. The Revision ID is a
16-bit value hard coded into the SROM that uniquely identifies
the die’s design.
9.5.8
The Checksum function calculates a 16-bit checksum over a
user specifiable number of blocks, within a single Flash macro
(Bank) starting from block zero. The BLOCKID parameter is
used to pass in the number of blocks to calculate the
checksum over. A BLOCKID value of 1 will calculate the
checksum of only block 0, while a BLOCKID value of 0 will
calculate the checksum of all 256 user blocks. The 16-bit
checksum is returned in KEY1 and KEY2. The parameter
KEY1 holds the lower eight bits of the checksum and the
parameter KEY2 holds the upper eight bits of the checksum.
The checksum algorithm executes the following sequence of
three instructions over the number of blocks times 64 to be
checksummed.
romx
add [KEY1], A
adc [KEY2], 0
Checksum Function
Table 9-9. EraseAll Parameters
Name
KEY1
KEY2
Address
0,F8h
0,F9h
Description
3Ah
Stack Pointer value when SSC is
executed.
Clock divider used to set the write pulse
width.
For a CPU speed of 12 MHz set to 56h
CLOCK
0,FCh
DELAY
0,FEh
Table 9-10. Table Read Parameters
Name
KEY1
KEY2
Address
0,F8h
0,F9h
Description
3Ah
Stack Pointer value when SSC is
executed.
Table number to read.
BLOCKID
0,FAh
Table 9-11. Checksum Parameters
Name
KEY1
KEY2
Address
0,F8h
0,F9h
Description
3Ah
Stack Pointer value when SSC is
executed.
Number of Flash blocks to calculate
checksum on.
BLOCKID
0,FAh
相關(guān)PDF資料
PDF描述
CY7C63310 enCoRe II Low-Speed USB Peripheral Controller(enCoRe II低速USB外設(shè)控制器)
CY7C63801 enCoRe II Low-Speed USB Peripheral Controller(enCoRe II低速USB外設(shè)控制器)
CY7C63823 enCoRe II Low-Speed USB Peripheral Controller(enCoRe II低速USB外設(shè)控制器)
CY7C63813 enCoRe II Low-Speed USB Peripheral Controller(enCoRe II低速USB外設(shè)控制器)
CY7C63833 enCoRe II Low-Speed USB Peripheral Controller(enCoRe II低速USB外設(shè)控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CY7C638034-LQXC 功能描述:IC USB CONTROLLER RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標準包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A
CY7C638034-SXC 功能描述:IC USB CONTROLLERS RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標準包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A
CY7C638035-LQXC 制造商:Cypress Semiconductor 功能描述:
CY7C638035-SXC 制造商:Cypress Semiconductor 功能描述:
CY7C63803-LQXC 功能描述:USB 接口集成電路 USB Peripheral Cntrl 8K/256 24-QFN RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20
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