參數(shù)資料
型號: MC68HC705C9ACFN
廠商: Freescale Semiconductor
文件頁數(shù): 18/118頁
文件大?。?/td> 0K
描述: IC MCU 2.1MHZ 16K OTP 44-PLCC
標(biāo)準包裝: 26
系列: HC05
核心處理器: HC05
芯體尺寸: 8-位
速度: 2.1MHz
連通性: SCI,SPI
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 24
程序存儲器容量: 16KB(16K x 8)
程序存儲器類型: OTP
RAM 容量: 352 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
EPROM Programming
MC68HC05C9A Advance Information Data Sheet, Rev. 4.1
114
Freescale Semiconductor
A.4 Programming Register (PROG)
This register is used to program the EPROM array. To program a byte of EPROM, set LATCH, write data
to the desired address, and set EPGM for tEPGM.
LATCH — EPROM Latch Control Bit
This read/write bit controls the latching of the address and data buses when programming the EPROM.
1 = Address and data buses latched when the following instruction is a write to 1 of the EPROM
locations. Normal reading is disabled if LATCH = 1.
0 = EPROM address and data bus configured for normal reading
EPGM — EPROM Program Control Bit
This read/write bit controls whether the programming voltage is applied to the EPROM array. For
programming, this bit can be set only if the LATCH bit has been set previously. Both EPGM and LATCH
cannot be set in the single write.
1 = Programming voltage applied to EPROM array
0 = Programming voltage not applied to EPROM array
NOTE
Bits 7–3 and bit 1 MUST be set to 0 when writing to the EPROM
programming register.
$001X
Bit 7
6543
21
Bit 0
Read:
LATCH
EPGM
Write:
Reset:
0
0000
000
Figure A-1. EPROM Programming Register
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