MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 148

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

General-purpose and alternate-function I/Os (GPIOs and AFIOs)
8.2
8.2.1
23:22, 19:18, 15:14,
21:20, 17:16, 13:12,
148/995
31
rw
15
rw
Bits 31:30, 27:26,
Bits 29:28, 25:24,
CNF7[1:0]
CNF3[1:0]
11:10, 7:6, 3:2
9:8, 5:4, 1:0
30
14
rw
rw
GPIO registers
Refer to
Port configuration register low (GPIOx_CRL) (x=A..G)
Address offset: 0x00
Reset value: 0x4444 4444
MODE7[1:0]
MODE3[1:0]
29
13
rw
rw
CNFy[1:0]: Port x configuration bits (y= 0 .. 7)
MODEy[1:0]: Port x mode bits (y= 0 .. 7)
28
12
rw
rw
These bits are written by software to configure the corresponding I/O port.
Refer to
In input mode (MODE[1:0]=00):
00: Analog input mode
01: Floating input (reset state)
10: Input with pull-up / pull-down
11: Reserved
In output mode (MODE[1:0]
00: General purpose output push-pull
01: General purpose output Open-drain
10: Alternate function output Push-pull
11: Alternate function output Open-drain
These bits are written by software to configure the corresponding I/O port.
Refer to
00: Input mode (reset state)
01: Output mode, max speed 10 MHz.
10: Output mode, max speed 2 MHz.
11: Output mode, max speed 50 MHz.
Section 1.1 on page 37
27
rw
11
rw
CNF6[1:0]
CNF2[1:0]
Table 17: Port bit configuration table on page
Table 17: Port bit configuration table on page
26
rw
10
rw
25
MODE6[1:0]
MODE2[1:0]
rw
rw
9
Doc ID 13902 Rev 9
for a list of abbreviations used in register descriptions.
24
rw
rw
8
>
00):
23
rw
rw
7
CNF5[1:0]
CNF1[1:0]
22
rw
rw
6
MODE5[1:0]
MODE1[1:0]
21
rw
rw
5
140.
140.
20
rw
rw
4
19
rw
rw
3
CNF4[1:0]
CNF0[1:0]
18
rw
rw
2
MODE4[1:0]
MODE0[1:0]
17
rw
rw
1
RM0008
16
rw
rw
0