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| 型号： | 73S1217F-EB |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 13/93页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL 73S1217F CBL/DOC/CD |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | * |
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73S12xxF Software User Guide
UG_12xxF_016
20
Rev. 1.50
4.1.2
External Data Memory
The 2 KB of XRAM are available at address locations 0x0000 through 0x07FF. The upper 1K bytes of
the external data memory space (from 0xFC00 to 0xFFFF) is reserved for additional special function
registers for the 73S12xxF chip and is segmented as shown in Table 1.
Table 1: Upper 1 KB External Data Memory layout
Function Space
# Bytes
Starting Address
Ending Address
Peripheral Control
128
0xFF80
0xFFFF
Smart Card Control
384
0xFE00
0xFF7F
USB Control
512
0xFC00
0xFDFF
4.1.3
Internal Data Memory
The 256 bytes of IRAM are available for use as scratch-pad RAM.
The IRAM Special Function Registers are mapped as shown in Table 2. All registers appearing in the
first column (000b) are bit-addressable:
Table 2: IRAM Special Function Register Map
HEX/BIN
000b
001b
010b
011b
100b
101b
110b
111b
0xF8 - 0xFF
0xF0 - 0xF7
b
0xE8 - 0xEF
0xE0 - 0xE7
acc
0xD8 - 0xDF
wdcon
0xD0 - 0xD7
psw
kcol
krow
kscan
kstat
ksize
korderl
korderh
0xC8 - 0xCF
t2con
0xC0 - 0xC7
ircon
0xB8 - 0xBF
ien1
ip1
s0relh
s1relh
0xB0 - 0xB7
p3
flshctl
pgadr
0xA8 - 0xAF
ien0
ip0
s0rell
0xA0 - 0xA7
usr15
8
udir15
8
0x98 - 0x9F
s0con
sobuf
ien2
s1con
s1buf
s1rell
0x90 - 0x97
usr70
udir70
dps
erase
0x88 - 0x8F
tcon
tmod
tl0
tl1
th0
th1
ckcon
mclkctl
0x80 - 0x87
sp
dp1
dph
dpl1
dph1
wdtrel
pcon
4.2
Low-level API
A low-level Application Programming Interface (API) is provided to control all hardware peripherals. An
application can link to the low-level API library to utilize the functions described in subsequent sections.
Before using the low-level API, an embedded application should call the API_Init() routine in the
beginning of the program as part of its initialization. As a general guideline, any feature to be included or
used in an application must first call its associated initialization routine. For example, to link the USB
module into an application, USB_Init() must first be called to initialize its associated registers for the USB
functions.
Each feature available with the 73S12xxF device has a sample application to demonstrate the library
function’s usage.
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