Sony PSP-1003 - Manual (Page 122)

122 How to use the keyboard
You can use the on-screen keyboard for text entry such as when entering a
nickname for the PSP™ system or entering network setting information.
Control panel item list
The keys that are displayed vary depending on the state of text entry.
How to use the keyboard
Keyboard keys Function
Enters a space
When entering text in the Internet browser address field,
previously entered addresses are displayed. Addresses are
displayed only when input mode is set to Web address
shortcuts.
Confirms characters that have been typed but not entered, and
exits the keyboard
Cancels characters that have been typed but not entered, and
exits the keyboard
Moves the cursor
Deletes the character to the left of the cursor
Function keys Cursor
Text entry field (displays
characters as they are entered)
Alphabet/symbol keys Input mode display Text entry options